Added functionality for cyclic sliding#14

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Sigma-90 wants to merge 4 commits intogetdave:developfrom

Sigma-90:develop

Commits on May 9, 2013

Commits on May 10, 2013

Updated copyright info to make it clear that this is a modification. Also cleaned up some redundant logical statements.
s-w-cdppl
committed

Commits on Aug 23, 2013

cleaned up the code, removed all dependencies and tested it on pc and tablet
s-w-cdppl
committed