Removed reflection-based hack for IDEA 12.
Disabling Kotlin builder on Android Studio only for Java.
Converted JetPsiChecker to Kotlin.
Converted JetPsiChecker to Kotlin.
VARIABLE_WITH_REDUNDANT_INITIALIZER is highlighted as unused (gray)
Fixed description for "Simplify Binary Negation" inspection.
KT-4016 Support "Copy Reference" action on class, method, etc

 #KT-4016 fixed
Highlighting "unused function literal" as other unused (gray)
Convert PositioningStrategy to Kotlin. Rename files.
Convert PositioningStrategy to Kotlin. Auto-convert.
Convert PositioningStrategy to Kotlin. Cleanup.
Simplified positioning strategy for unreachable code.
Highlighting "as Foo" for useless casts in gray.

 #KT-6070 fixed
Testing highlight type for all "unused" diagnostics.
in order to avoid misleading suggestions to run 'ant dist', calculate the paths to SDK annotations relatively to the home directory