Rename MathProg to JuMP
Merge pull request #329 from IainNZ/devel

Rename MathProg to JuMP
Bump YAML
SymPy: sha1 bump
add CRC32 package
Merge pull request #330 from fhs/CRC32

add CRC32 package
fix CRC32 url
add ZipFile package

Also fix url for CRC32.
Stats version 0.2.6
Merge pull request #331 from fhs/ZipFile

add ZipFile package (read/write ZIP archive)
bump Zlib version and make ZipFile use it
Merge pull request #332 from fhs/ZipFile

bump Zlib version and make ZipFile use it
MixtureModels version 0.1.1
Bump ODBC sha1
Bump Datetime sha1 and delete Datetime2 package
update ZMQ and JSON urls -- now under JuliaLang.
Bump BinDeps
Use canonical github url, with .git at the end
bump Calendar
hdfs cleanup:
    - dataframes made optional
    - streams closed when job is deleted
    - additional checks on hdfs apis
    - optimized single byte read from hdfs stream