update gradle+plugins, update gradle-witness

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add icon back

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stop crashes when sending sms

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Fix regression with providers being registered.

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libjobqueue javadoc and scoping.

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Move responsibility for Context injection out of JavaSerializer.

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Added README

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Fix README.md formatting

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Closes #2101
Update JobManager README.md

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silly actionbar shadow issue

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fix AppCompat theme crash

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

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