Introduced CompositeExtension (to pass several of them).
Disallowed using type parameter as reified type argument.

 #KT-3050 fixed
Removed toArray() from collections (few tests are still failing).

 #KT-3352 in progress
Generated default implementations for Collection.toArray().

 #KT-3352 in progress
Added copyToArray intrinsic method.

 #KT-3352 fixed
Fixed compilation. toArray → copyToArray
Cache files in the provider

This is required when, for example, very many exceptions are thrown in tests, and the console goes crazy calling JetExceptionFilter
Chaching results of findClasses in JavaElementFinder

Quieries to this method appear very high in the profile when there are many exceptions in the console
Fixing assertion failure in a quick-fix
Exception fixed: com.intellij.psi.PsiInvalidElementAccessException
Temp hack to workaround backend bug
Removed examples.

Moved to https://github.com/kotlin-projects/examples
Fixed VerifyError when copyToArray() is immediately returned from method.
Got rid of "jet" file extension.
Accidental collection modification fixed
Removed copyToArray hack
Merge remote-tracking branch 'origin/master' into idea12