Merge changes I6ea75cf1,I48a34d02,Iea4ccbae,Ieb4dde91,I14ea9842, ... into idea133

* changes:
  project leak fixed + invokeLater is too late for tests, changed to invokeAndWait() + dispatchEvents()
  project leak fixed
  IDEA-93962 add possibility to change proguard logs output directory
  IDEA-123691 Minor project wizard edits: project type list refactored
  New icons
  Map help button for Android-Gradle Compiler page to "reference.projectsettings.compiler.gradle", see details at IDEA-123398 Map help buttons of two pages under Compiler settings
  explicit 1.6 language level/compilation target
  notnull, cleanup
  notnull
  explicit 1.6 language level
  fix tests: set big version for mock sdk tools
  Fixed test, can uncomment now