reduce critical section + run go fmt
Merge branch 'master' of github.com:PatrickDropbox/godropbox

Conflicts:
	memcache/raw_client.go
Add ConnectionHeader constant
Run gofmt
Add close and keep-alive constants too
add test for GetMulti with dup keys
.
fmt
Merge pull request #82 from PatrickDropbox/master

add test for GetMulti with dup keys
Merge pull request #83 from sixolet/master

LIKE expressions for sqlbuilder
Update contributor list
Properly cache empty values
Make value validation return an error
Include value length in error message
Merge pull request #84 from adegtiar/fix_memcache_empty_value

Properly cache empty values
add Set method to mock clock.
Merge pull request #85 from PatrickDropbox/master

add Set method to mock clock.
Add .travis.yml file
Merge pull request #86 from rajatgoel/master

Add .travis.yml file
Add build status badge