Fix some minor typos and gitignore IntelliJ folder

Author: wwadge

.gitignore

@@ -6,3 +6,5 @@ jsr354-ri.iml
 -project
 /.resourceCache
 /.project
+/.idea
+

src/main/java/org/javamoney/moneta/function/MonetarySummaryStatistics.java

@@ -1,12 +1,11 @@
 package org.javamoney.moneta.function;
 
-import java.util.Objects;
+import org.javamoney.moneta.FastMoney;
+import org.javamoney.moneta.spi.MoneyUtils;
 
 import javax.money.CurrencyUnit;
 import javax.money.MonetaryAmount;
-
-import org.javamoney.moneta.FastMoney;
-import org.javamoney.moneta.spi.MoneyUtils;
+import java.util.Objects;
 
 /**
  * A state object for collecting statistics such as count, min, max, sum, and
@@ -26,7 +25,7 @@ public class MonetarySummaryStatistics {
 
 	private MonetaryAmount sum;
 
-	private MonetaryAmount avarage;
+	private MonetaryAmount average;
 
     /**
      * Creates a new instance, targeting the given {@link javax.money.CurrencyUnit}.
@@ -65,15 +64,15 @@ public MonetarySummaryStatistics combine(MonetarySummaryStatistics summaryStatis
         max = MonetaryFunctions.max(max, summaryStatistics.max);
         sum = sum.add(summaryStatistics.sum);
         count += summaryStatistics.count;
-        avarage = sum.divide(count);
+        average = sum.divide(count);
 		return this;
 	}
 
 	private void doSummary(MonetaryAmount moneraty) {
 		min = MonetaryFunctions.min(min, moneraty);
 		max = MonetaryFunctions.max(max, moneraty);
 		sum = sum.add(moneraty);
-		avarage = sum.divide(++count);
+		average = sum.divide(++count);
 	}
 
 	private boolean isEmpty() {
@@ -84,7 +83,7 @@ private void setSameMonetary(MonetaryAmount monetary) {
 		min = monetary;
 		max = monetary;
 		sum = monetary;
-		avarage = monetary;
+		average = monetary;
     }
 
     /**
@@ -123,8 +122,8 @@ public MonetaryAmount getSum() {
      * Get the mean average of all amounts added.
      * @return the mean average amount, or null if no amount was added to this summary instance.
      */
-    public MonetaryAmount getAvarage() {
-		return avarage;
+    public MonetaryAmount getAverage() {
+		return average;
 	}
 
 	@Override
@@ -134,7 +133,7 @@ public String toString() {
 		sb.append("min:").append(min).append(",");
 		sb.append("max:").append(max).append(",");
 		sb.append("sum:").append(sum).append(",");
-		sb.append("avarage:").append(avarage).append("]");
+		sb.append("average:").append(average).append("]");
 		return sb.toString();
 	}
 

src/main/java/org/javamoney/moneta/internal/DefaultCashRounding.java

@@ -77,7 +77,7 @@ final class DefaultCashRounding implements MonetaryRounding, Serializable{
      *
      * @param currency The currency, which determines the required precision. As
      *                 {@link RoundingMode}, by default, {@link RoundingMode#HALF_UP}
-     *                 is sued.
+     *                 is used.
      */
     DefaultCashRounding(CurrencyUnit currency, RoundingMode roundingMode, int minimalMinors){
         this(currency.getDefaultFractionDigits(), roundingMode, minimalMinors);
@@ -89,7 +89,7 @@ final class DefaultCashRounding implements MonetaryRounding, Serializable{
      *
      * @param currency The currency, which determines the required precision. As
      *                 {@link RoundingMode}, by default, {@link RoundingMode#HALF_UP}
-     *                 is sued.
+     *                 is used.
      */
     DefaultCashRounding(CurrencyUnit currency, int minimalMinors){
         this(currency, RoundingMode.HALF_UP, minimalMinors);

src/main/java/org/javamoney/moneta/internal/DefaultRounding.java

@@ -75,7 +75,7 @@ final class DefaultRounding implements MonetaryRounding, Serializable{
      *
      * @param currency The currency, which determines the required precision. As
      *                 {@link RoundingMode}, by default, {@link RoundingMode#HALF_UP}
-     *                 is sued.
+     *                 is used.
      */
     DefaultRounding(CurrencyUnit currency, RoundingMode roundingMode){
         this(currency.getDefaultFractionDigits(), roundingMode);

src/test/java/org/javamoney/moneta/function/GroupMonetarySummaryStatisticsTest.java

@@ -128,7 +128,7 @@ private GroupMonetarySummaryStatistics createGroupMonetary() {
 	private void verifySummary(MonetarySummaryStatistics summary,
 			int expectedAvarage, int expectedSumm, long count) {
 		Assert.assertEquals(summary.getCount(), count);
-		Assert.assertEquals(summary.getAvarage().getNumber()
+		Assert.assertEquals(summary.getAverage().getNumber()
 				.intValue(), expectedAvarage);
 		Assert.assertEquals(summary.getSum().getNumber().intValue(),
 				expectedSumm);

src/test/java/org/javamoney/moneta/function/MonetaryFunctionsAgregatorTest.java

@@ -112,7 +112,7 @@ public void summarizingMonetaryTest() {
 		assertEquals(0L, summary.getMin().getNumber().longValue());
 		assertEquals(10L, summary.getMax().getNumber().longValue());
 		assertEquals(16L, summary.getSum().getNumber().longValue());
-		assertEquals(2L, summary.getAvarage().getNumber().longValue());
+		assertEquals(2L, summary.getAverage().getNumber().longValue());
 
 	}
 

src/test/java/org/javamoney/moneta/function/MonetarySummaryStatisticsTest.java

@@ -20,7 +20,7 @@ public void shouldBeEmpty() {
 		Assert.assertEquals(0L, summary.getMin().getNumber().longValue());
 		Assert.assertEquals(0L, summary.getMax().getNumber().longValue());
 		Assert.assertEquals(0L, summary.getSum().getNumber().longValue());
-		Assert.assertEquals(0L, summary.getAvarage().getNumber().longValue());
+		Assert.assertEquals(0L, summary.getAverage().getNumber().longValue());
 
 	}
 
@@ -47,7 +47,7 @@ public void shouldBeSameValueWhenOneMonetaryIsAdded() {
 		Assert.assertEquals(10L, summary.getMin().getNumber().longValue());
 		Assert.assertEquals(10L, summary.getMax().getNumber().longValue());
 		Assert.assertEquals(10L, summary.getSum().getNumber().longValue());
-		Assert.assertEquals(10L, summary.getAvarage().getNumber().longValue());
+		Assert.assertEquals(10L, summary.getAverage().getNumber().longValue());
 	}
 
 	@Test
@@ -57,7 +57,7 @@ public void addTest() {
 		Assert.assertEquals(10L, summary.getMin().getNumber().longValue());
 		Assert.assertEquals(110L, summary.getMax().getNumber().longValue());
 		Assert.assertEquals(210L, summary.getSum().getNumber().longValue());
-		Assert.assertEquals(70L, summary.getAvarage().getNumber().longValue());
+		Assert.assertEquals(70L, summary.getAverage().getNumber().longValue());
 	}
 
 	@Test
@@ -69,7 +69,7 @@ public void combineTest() {
 		Assert.assertEquals(10L, summaryA.getMin().getNumber().longValue());
 		Assert.assertEquals(110L, summaryA.getMax().getNumber().longValue());
 		Assert.assertEquals(420L, summaryA.getSum().getNumber().longValue());
-		Assert.assertEquals(70L, summaryA.getAvarage().getNumber().longValue());
+		Assert.assertEquals(70L, summaryA.getAverage().getNumber().longValue());
 	}
 
 	private MonetarySummaryStatistics createSummary() {