place temp file inside extra directory
restart indexing on root change, cancel on project disposing (IDEA-96277, IDEA-115651, some "already disposed" exceptions)
restore Find Jar working with malformed html (use nekohtml)
changed file reindexing need not be canceled on root change
refactor to allow redefine colors by checkbox state (enabled/selected)
make selected checkbox blue
custom checkbox sign for IntelliJ laf
tolerate null-ranged elements (EA-57384 - NPE: BlockSupportImpl.sendBeforeChildrenChangeEvent)
support foreach evaluation in debugger