Fix #283

Ezpands the field for the search cache results to LONGTEXT
release id 4aad50f6c9
Merge remote-tracking branch 'origin/master' into 1.4.5

Conflicts:
	zp-core/setup/index.php

	modified:   zp-core/class-image.php
	modified:   zp-core/githead
	modified:   zp-core/setup/index.php