Fixes
- fix compatibility with ST dev environment
- fix stuck git/hg processes causing package updates to never finish
- attempt to improve indexer resuming reliability
Cleanups
Note: Following changes will hit those who are still running out-dated Package Control beta builds when finally decide to update.
Manual action might be needed to fix libraries.
This does not effect upgrades from Package Control 3.
- remove auto-fixing missing INSTALLER of libraries (don't convert unmanaged to managed ones anymore)
- remove auto-fixing legacy library names.