Add overpermissions support, fix missing licenses, and correct all the
formatting problems.
Thanks @OverCaste
Add a couple more missing items/blocks.  Fix Material test so it ignores
technical blocks, and deprecated blocks.
build against CB 1.7.2-R0.3
version increase to prevent confusion.
add itemstack test
remove SDFEconomy repository as it's not stable.
Mark transitive dependencies as optional

Traditionally, Maven dependencies are marked as optional if they are not required to compile on top of the artifact, in this case, Vault. Usually though, since these dependencies are not marked as optional, the truly Mavenized dependencies (such as CraftConomy 3) will be sometimes included in the project structure, and unless excluded by the dependent plugin depending on Vault, those same dependencies will be leaked down the tree of dependencies.
Merge pull request #532 from gabizou/master

Mark transitive dependencies as optional
update to bukkit 1.7.9-R0.1-SNAPSHOT for building. add placeholder UUID
methods in Permission layer.
fix javadocs
add OfflinePlayer methods to Economy. add AbstractEconomy to help with
translation into new methods. Update minor version due to API changes.
Update Vault for VaultAPI changes
update gitignore
update CC3 dependency to latest version.
version increase due to API changes
dont add leading 0 to version