Update all refs to RC2

Author: pomadchin

README.md

@@ -16,8 +16,8 @@ resolvers ++= Seq(
 )
 
 libraryDependencies ++= Seq(
-  "io.pdal" %% "pdal" % "1.7.0-RC1", // core library
-  "io.pdal" %  "pdal-native" % "1.7.0-RC1" // jni bindings
+  "io.pdal" %% "pdal" % "1.7.0-RC2", // core library
+  "io.pdal" %  "pdal-native" % "1.7.0-RC2" // jni bindings
 )
 ```
 
@@ -40,8 +40,8 @@ Scala API to build pipeline expressions instead of writing a raw JSON.
 
 ```scala
 libraryDependencies ++= Seq(
-  "io.pdal" %% "pdal-scala" % "1.7.0-RC1", // scala core library
-  "io.pdal" %  "pdal-native" % "1.7.0-RC1" // jni bindings
+  "io.pdal" %% "pdal-scala" % "1.7.0-RC2", // scala core library
+  "io.pdal" %  "pdal-native" % "1.7.0-RC2" // jni bindings
 )
 ```
 

examples/pdal-jni/build.sbt

@@ -21,7 +21,7 @@ resolvers ++= Seq(
 
 fork := true
 
-val pdalVersion = "1.7.0-SNAPSHOT"
+val pdalVersion = "1.7.0-RC2"
 
 libraryDependencies ++= Seq(
   "io.pdal" %% "pdal"        % pdalVersion,