Merge pull request #78 from lindahua/master

Add DeExpr.jl
Bump Clp
Add CoinMP interface package for mixed-integer linear optimization
Fix url
bump sha1
bump Calendar
Add BloomFilters package
new date indexing functionality bump sha1
bump ICU
Bump CoinMP -- much expanded interface
bump Tk
bump sha1
bump sha1
bump Cairo
bump Tk
initial bump of Oil package for financial TA
Bump BloomFilters SHA1
Bump Distributions SHA1
Bump Calculus SHA1
Bump Options SHA1