Added sorting support in FileBasedIdentityStore
Added IDMUtil.getDefaultParamsForSorting, so all IdentityStore will use same default criterias for sorting
Added 'config' module to be dependency of 'idm/impl' again
Merge pull request #50 from mposolda/master

Sorting support in FileBasedIdentityStorage, dependency fix
Merge pull request #49 from abstractj/working

Removing old references to picketlink-cdi
generateSalt will be always executed, extracting it
to another class makes more sense