add teamcity build icons
Update README.md
Create .travis.yml
Update .travis.yml
merge README.md
Update README.md
Update .travis.yml
Update README.md
Disable unit test pending fix for issue 221
fix unit test to just check sign of result
Update README.md
Update README.md
Merge Tests from Fsharp_31
Remove F#3.1 compiler argument quotations-debug+
Merge pull request #226 from 7sharp9/fsharp_30

Added portable support for FSharp.Core
Excluded F#3.1 array slicing from tests with #def
Excluded F#3.1 custom query reduced restrictions
Excluded F#3.1 quotation debug additions and bug fixes
Excluded F#3.1 type inference improvements/bug fixes
Excluded F#3.1 quotation debugging checks