Improove code readability.
+review CR-IC-4863
Eliminating ugly black window with jdk7 and jdk8.
IDEA-121916 Allow to select several words with multiple carets with mouse
reverted fix for IDEA-122637
IDEA-122637 CCE at com.intellij.debugger.ui.XBreakpointGroupingByClassRule.getGroup
IDEA-122757 IOE at com.intellij.openapi.util.io.FileUtilRt.doCreateTempFile