added default error handler for PyCharm Educational
fixed EDU-175 Remove explore courses from welcome screen
fixed PY-13899 Add Interpreter: NPE at com.jetbrains.python.sdk.PythonSdkDetailsStep.a
extract light method object: calculate offsets related to valid parent so inserted during refactoring import would be taken into account
exclude Object from inheritance -> delegation
EA-60351 - assert: InheritanceToDelegationProcessor.<init>
EA-58155 - NPE: ValueHint.createInspectTree
removed dependency on groovy added by mistake
use 'test' scope for junit dependency
Merge remote-tracking branch 'origin/master'
IDEA-129262 Failed update from 138.1751 to latest version
Merge remote-tracking branch 'origin/master'