Tests and Cache plugin#2

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tcha-tcho wants to merge 3 commits intorezitech:masterfrom

tcha-tcho:master

Commits on Feb 6, 2014

Including tests and starting the cache plugin
tcha-tcho
committed

Commits on Feb 7, 2014

first problematic version of stash.cache
tcha-tcho
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Commits on Feb 10, 2014

Passing on first general testing.
tcha-tcho
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