Added an option to keep old files#1

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regagain wants to merge 4 commits intosamhal:masterfrom

regagain:dont_remove

Commits on Sep 2, 2015

Added an option to keep old files
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Commits on Sep 3, 2015

keep_old_files is now a boolean
regagain
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removed old, unused code
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Commits on Sep 11, 2015

Update .cmus-syncrc
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