Added submodule vendor/aws
Added submodule vendor/mock-s3
Naming fix
Extended Makefile rule
Export lookupBlob
Minor fixes and updates
Minimize the amount of I/O being done
Test reading an element's history from scratch
Rewrite commitEntryHistory
Began tutorial documentation
Remove unneeded default declarations
Work around http://hackage.haskell.org/trac/ghc/ticket/7557
A few minor code fixes
Added resolveRef
Whitespace fixes
Bump version to 0.5.4
Remove a use of "unsafe"
Bump version to 0.5.5
Interface reorg to assist partial application
Added lookupRefCommit