fix link to modules and helpers
handle NULL value in seeInRepository param array
Merge pull request #646 from dontcallmedom/1.6

fix link to modules and helpers
handle NULL value in seeInRepository param array / typo fix
Merge pull request #647 from imanzuk/1.7

handle NULL value in seeInRepository param array
Fix for issue-649
Merge pull request #653 from wyhmichael/1.7

Fix for issue-649
Fixed wrong test in #645
Merge pull request #654 from piccagliani/1.7

Fixed wrong test in #645
typhint removed, for phpunit incompatibility fix #648
Merge branch 'master' of github.com:Codeception/Codeception into 1.6
Merge branch '1.6' of github.com:Codeception/Codeception into 1.6
Merge branch '1.6' into 1.7
Merge branch '1.7' of github.com:Codeception/Codeception into 1.7
Merge branch '1.7'
data providers implemented