Fix README.md formatting

// FREEBIE

Closes #2101
Update JobManager README.md

// FREEBIE
silly actionbar shadow issue

// FREEBIE
fix AppCompat theme crash

Fixes #2084
// FREEBIE
add "elevation" window overlay for android 4.x too

// FREEBIE
Merge remote-tracking branch 'upstream/master'
Merge branch 'master' into jxmods-full