New Kotlin project wizard created.

 #KT-5377 Fixed
Classpath file generation added.
Add 120 lines limit and indent for empty lines
Add runtime to Kotlin test project
AbstractWizard is now parameterized, addNature/Builder and alreadyExists methods renamed.

Minor: refactoring
Kotlin project wizard added to 'new project' list.
Fix compilation for 0.8.324
JetBrains license added.
Autoimport tests created.
.recommenders folder added to .gitignore.
Autoimport duplication fixed.

 #KT-5360 Fixed
Most of methods are now static. New method for creating source files with specified packages.
Performing multifile tests, multifile test added to testData.
Multifile tests without parameters.
Merge pull request #53 from adkozlov/autoimport-fix

Autoimport fix