update requirements since cake 2.3.0 has gone gold

- update .travis.yml
- update requirement during install
fix: avoid ambiguous column error
trim newlines when updating version number
Merge branch 'master' into 1.5

Conflicts:
	Controller/Component/CroogoComponent.php
Update Plugin/Comments/View/Elements/comment.ctp

Since Comments is a Plugin we need to call it.
updating style for 'email' and 'tel'
updating style for fieldset inside tab-content
add novalidate attribute for search forms
new method: CroogoHelper::adminTab()
updating views to use adminTab()
new method CroogoHelper::adminAction
skip when 'button' => false
updating views to use adminAction
Merge branch '1.5-style-updates' into 1.5
Merge branch '1.5-admin-helper' into 1.5
remove exec bit
pass more complete args for form search url
method = post for ExtensionsLocales/admin_activate
fix typo
centering icons in item-actions