Cherry-picked 62af2145509d799700ba361a16cde6745aa8f0c3 + moved to new BitShares/fc repo:

Update fc submodule

Conflicts:
	libraries/fc
Enable compilation with gcc-4.7.2
Rebranding
Cherry-picked 651898b1c7043a5ec7e596be44b6e8ea4e98c92d

Update fc submodule

Conflicts:
	libraries/fc
Fixes
Removed lots of dead code

Got rid of most compiler warnings