Allow for concurrent calls to schemagen.Generate.

Drop usage of github.com/codegangsta/cli.
LICSTAT-6430 Implement glob mode for schemagen.

Glob mode for schemagen has been implemented.
Files generated by bindata are now formatted with gofmt.
gocheck library has been dropped.
All temporary files created during run of tests
and cmd/schemagen are now cleaned up.
golint added as part of travis build.
schemagen.Generate runs bindata.Generate concurrently.
Merge pull request #4 from pblaszczyk/glob_rev

Add glob mode to schemagen.