Keep monitor on setting + bug fix#5

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mosoto wants to merge 3 commits intodmnd:masterfrom

Commits on Aug 29, 2015

Add setting for keeping system on but allowing monitor to turn off.
mosoto
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Fix bug where using 'Stay awake for' context menu repeatedly loses the original state thus preventing caffeine from ever being disabled except by exiting the program
mosoto
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Commits on Sep 1, 2015

Remove newlines before opening braces
mosoto
committed