AIDEGen: need a generic way to tell if intelliJ is installed.

Bug: 117631326
Test: 1. aidegen tradefed -p /opt/
      2. If users installed a IntelliJ in /opt/, we search and launch it.
      3. If users do not install a IntelliJ in /opt/, show message:
         "Can not find IDE in path: /opt/, please add it to your $PATH
	  or provide the exact executable IDE script path by "aidegen -p" command."

Change-Id: I677c22f867768e9d26e9573a37d3935e87957a4b
2 files changed
tree: 00a2280662b1abf1a7417e85034b4ec52e359755
  1. aidegen/
  2. OWNERS
  3. PREUPLOAD.cfg
  4. pylintrc