add a Signer Utility to sign filters
merge
fix expected path
fix 'hash' typo and update path for testShouldResolveWithCustomFiltersPopulatingCacheFirst
add method to get trimmed hash
strip out special characters - in some instances the hash can contain percentage sigsn which may not play well with some filesystems
prepend resolved path with runtime config prefix - closes #399
remove unreachable statement as per #402
add runtime config action
update SignerInterface. Add hash parameter to runtime config route
rebase
add runtime config route
do not check if the base image is stored
move Signer to Imagine/Cache namespace
catch Imagine RunTimeException - https://github.com/avalanche123/Imagine/blob/develop/lib/Imagine/Exception/RuntimeException.php
update action name
add bc note
update Signer Interface
fix typo
remove trimHash method