Added testing coverage mandate to travis testing.
Missed the cover flag.
Reduced coverage target to consider batch code being skipped with version 1 of protocol.
Updated .travis.yaml to match build lifecycle description on travis' site.
Added go get.
Merge pull request #249 from phillipCouto/force_cover_target

Added testing coverage mandate to travis testing.
Added note about test coverage in the contribution guidelines
Corrected supported versions
Merge branch 'master' of https://github.com/gocql/gocql

Conflicts:
	integration.sh