Merge pull request #188 from s0undt3ch/develop

Update ChangeLog to include the Linux Mint Support. Thanks @alexvh!
Add support for Linaro
Emergency workaround for salt issue 6502

This workaround will create the cachedir that 0.16.2 fails to (see
https://github.com/saltstack/salt/issues/6502)
Merge pull request #194 from terminalmage/cachedir-fix

Emergency workaround for salt issue 6502
Merge pull request #192 from terminalmage/linaro-fix

Add support for Linaro
Update ChangeLog to include the Linaro support added.
Bump version to 1.5.6