fix entry tests

Now does simpler contains checks to be somehwat independent from
(design) HTML.

Add lightbox to images and group them in gallery

SPR-322

edit form styling SPR-320

added JavaScript for adding new inputs to multi edit fields

Distinguish between internal and external images

SPR-322

Add image type

SPR-322, GitHub Issue #13

Add datepicker script which was missing in #25

check access level in search. related to #23

Only readable pages should be returned by a search.

run travis against a current PR of dokuwiki

Add docblock and limit explode to 3 values

SPR-323, GitHub Issue #6, PR #25

Move date settings to date type

However we use the ability to explain and link to documentation for this
option.

SPR-323, GitHub Issue #6, PR #25

Add the date type

SPR-323, GitHub Issue #6

adjust travis to only test against devel

don't output struct data for non-existing pages

Add more tests for action_plugin_struct_entry

Github Issue #11, Issue #5

Refactor validate function

GitHub Issue #11

Add tests for createForm() and validate()

These functions are part of the class action_plugin_struct_entry

SPR-290, GitHub Issue #11

Split function call to remove PHP Strict warnings

Fix binary AND to boolean AND

Add message if there are no results to show

Also add more annotations.

SPR-317, GitHub Issue #22

saved struct data is now in sync with page revisions

Needs some tests and requires the new COMMON_WIKIPAGE_SAVE event

fixed integer validation language strings

fix SQL error when first column is multi value

Remove unused Code

In the previous commit all current parameter handling has been moved to
SearchConfig class, so this code is now unnecessary

Github Issue #22, SPR-317

Let SearchConfig handle all configuration

SPR-309. SPR-317 GitHub Issue #22