Merge pull request #298 from tpetricek/master

Support heterogeneous types at the top level in XmlProvider (fix #294)
Revert FAKE workaround as problem is already fixed
Release 2.0.0-alpha2
Merge pull request #299 from ovatsus/master

Release 2.0.0-alpha2
When reading a sample uri fails, treat it as a sample text (fixes #303)
Allow to specify only the Schema without a Sample in CsvProvider
Fix FreebaseProvider test
Merge pull request #304 from ovatsus/master

[CsvProvider] When reading a sample uri fails, treat it as a sample text + Allow to specify only the Schema without a Sample
add travis ci build
Merge pull request #307 from enricosada/travis_build

add travis ci build
Update link to travis build status
Update FSharp Formatting and fix documentation tests