When the new process is created, the main thread in the new process already has the attribute 'pydevd_id', so the new thread doesn't get new id with its process number and the debugger loses access to both threads. Therefore we should update thread_id for every main thread in the new process.

Disabled verification of jre bundle if "idea.jre.check" property is not set to "true"

* PyTest reports error when no tests found
* separator added to directory name

IDEA-148512 Regression: Import/Export Settings no longer supports 'Remote Tools' after upgrade to IntelliJ 15

export settings — create missed directories on save

get rid of APP_CONFIG

Added PyFile.multiResolveName() that is a multi-resolve version of
getElementNamed(). The same method is added to PyImportedNameDefiner,
but there is no need in extracting a super inferface at the moment.
Finally, there is the new PyImportElement.multiResolve() in addition to
resolve().

Changed some single-resolve usages to multi-resolve acorss the codebase.
There are still many less important single-resolve usages that should
be converted to multi-resolve eventually. Single-resolve variants are
deprecated now.

QuickDocOnMouseOverManager: move code which determines target PSI element (involving resolve) to a pooled thread

[vcs-log] fix ActionsTreeTest: set some description and presentation in CollapseOrExpandGraphAction constructor

with this fix, initial updateRequest() might be performed before rendering the window for the first time, thus eliminating shortly visible "Loading..." panel

(this commit partially reverts 8fb202f0)

(Case of libraries configured as jar folders) IDEA-140074 Find in Path not working in jar file paths - Directory scope not working as before