[TASK] Add default value for remaining SQL columns

Closes: #171
[TASK] Use Flux template resolve utility in Provider
Revert "[TASK] Add default value for remaining SQL columns"

This reverts commit 6f69e5cb09b2727ba50bdb8b8607d4487d1b072d.

As per http://dev.mysql.com/doc/refman/5.6/en/blob.html :
> BLOB and TEXT columns cannot have DEFAULT values.
[BUGFIX] Allow null for page flexform
[TASK] Update vhs 2.0 namespaces
[TASK] Test for PHP 5.6 for LTS (master) with travis
Moved 5.5 to all builds because TYPO3 supports officially PHP 5.5 in TYPO3 6.0
Merge pull request #174 from xf-/vhs-namespaces-update

[TASK] Update vhs 2.0 namespaces
Merge pull request #175 from xf-/travisPhp56

[TASK] Test for PHP 5.6 for LTS (master) with travis