fix undefined variable
Merge pull request #213 from cornernote/patch-1

fix undefined variable in LightOpenID
Added missing php extension in require statement
Merge pull request #215 from ojhaujjwal/patch-1

Added missing php extension in require statement
Fix line endings in CHANGELOG
CHANGELOG for 2.2.1
Merge pull request #223 from hybridauth/master

2.2.1 release