A custom version for the internal environment.
Fixes:
- Hanging processes on manual job termination
- Regression: /lib/layout/menu_right_arrow2.png is missing in Jenkins core
- Outage of Jenkins executors due to unhandled exceptional values in parameters
- SSH slave connections die after the slave outputs 4MB of STDERR
- [cli] - NPE if a plugin refuses a build's scheduling
- NPE during the scheduling of the matrix configuration / disabled matrix configurations
- Jobs queue cache update period: reduce and make it configurable