Merge pull request #75 from IainNZ/master

Adding Jump package
Bump ZMQ

Changes required for recent julia enhancements
  * new ccall interface
  * require/include
Bump Compose and Gadfly.
Bump ZMQ

Bugfix for serialization
Update ODBC/versions/0.0.0/requires
Update ODBC/url
Update ODBC/versions/0.0.0/sha1
Bump Mongrel2 sha

fix JSON import
Bump Clp
Bump Clp
Bump Jump
Bump and fix HTTP
bump sha1 for padNA implementation and other refactors
bump sha1
Bump DataFrames sha1 for new function read_RDA
Renamed Jump.jl to MathProg