Update library/Zend/Paginator/Adapter/DbSelect.php

DbSelect adatper don't reset ORDER BY on count query, this leads to an exception if your DbSelect object uses order function.

This patch should resolve this problem.
Update library/Zend/Form/View/Helper/FormRow.php

setRenderErrors is not always set to true, incase it has been set to false already.
Tests for __invoke  parameter
Revert formatting
Merge branch 'patch-1' of git://github.com/rb-cohen/zf2 into hotfix/3345
[#3345] CS fixes

- Trailing whitespace
Merge branch 'hotfix/3345'

Close #3345
Added --prefer-source flag to composer install command

- GitHub now wants zipball downloads to go through the API, which quickly runs
  into limits. Adding the --prefer-source flag circumvents that at the expense
  of a costlier clone operation.
Merge branch 'hotfix/travis-composer-source'

Make builds more reliable until travis-ci can get increased API limits for
download zipballs
Merge branch 'patch-1' of git://github.com/Richard-Rumpel/zf2 into Richard-Rumpel-patch-1
Added test to ensure reset('order') was called in Paginator's DbSelect adapter
#2968 getAuthors always returns Collection\Author
Merge branch 'hotfix/2968'

Fixes #2968
Merge branch 'master' of https://github.com/zendframework/zf2