comments typo fix INVERT->INVERSE (Fixes adafruit#224)

Author: BillyDonahue

Adafruit_SSD1306.cpp

@@ -627,7 +627,7 @@ bool Adafruit_SSD1306::begin(uint8_t vcs, uint8_t addr, bool reset,
     @param  y
             Row of display -- 0 at top to (screen height -1) at bottom.
     @param  color
-            Pixel color, one of: SSD1306_BLACK, SSD1306_WHITE or SSD1306_INVERT.
+            Pixel color, one of: SSD1306_BLACK, SSD1306_WHITE or SSD1306_INVERSE.
     @return None (void).
     @note   Changes buffer contents only, no immediate effect on display.
             Follow up with a call to display(), or with other graphics
@@ -685,7 +685,7 @@ void Adafruit_SSD1306::clearDisplay(void) {
     @param  w
             Width of line, in pixels.
     @param  color
-            Line color, one of: SSD1306_BLACK, SSD1306_WHITE or SSD1306_INVERT.
+            Line color, one of: SSD1306_BLACK, SSD1306_WHITE or SSD1306_INVERSE.
     @return None (void).
     @note   Changes buffer contents only, no immediate effect on display.
             Follow up with a call to display(), or with other graphics
@@ -734,7 +734,7 @@ void Adafruit_SSD1306::drawFastHLine(int16_t x, int16_t y, int16_t w,
                    Width of line, in pixels.
         @param color
                Line color, one of: SSD1306_BLACK, SSD1306_WHITE or
-   SSD1306_INVERT.
+   SSD1306_INVERSE.
     @return None (void).
     @note   Changes buffer contents only, no immediate effect on display.
             Follow up with a call to display(), or with other graphics
@@ -785,7 +785,7 @@ void Adafruit_SSD1306::drawFastHLineInternal(int16_t x, int16_t y, int16_t w,
     @param  h
             Height of line, in pixels.
     @param  color
-            Line color, one of: SSD1306_BLACK, SSD1306_WHITE or SSD1306_INVERT.
+            Line color, one of: SSD1306_BLACK, SSD1306_WHITE or SSD1306_INVERSE.
     @return None (void).
     @note   Changes buffer contents only, no immediate effect on display.
             Follow up with a call to display(), or with other graphics
@@ -833,7 +833,7 @@ void Adafruit_SSD1306::drawFastVLine(int16_t x, int16_t y, int16_t h,
         @param __h height of the line in pixels
         @param color
                    Line color, one of: SSD1306_BLACK, SSD1306_WHITE or
-   SSD1306_INVERT.
+   SSD1306_INVERSE.
     @return None (void).
     @note   Changes buffer contents only, no immediate effect on display.
             Follow up with a call to display(), or with other graphics