* Started mass-refactoring of the current entity repos
* Rewrote book tree logic
- Now does two simple queries instead of one really complex one.
- Extracted logic into its own class.
- Remove model-level akward union field listing.
- Logic now more readable than being large separate query and
compilation functions.
* Extracted and split book sort logic
* Finished up Book controller/repo organisation
* Refactored bookshelves controllers and repo parts
* Fixed issues found via phpunit
* Refactored Chapter controller
* Updated Chapter export controller
* Started Page controller/repo refactor
* Refactored another chunk of PageController
* Completed initial pagecontroller refactor pass
* Fixed tests and continued reduction of old repos
* Removed old page remove and further reduced entity repo
* Removed old entity repo, split out page controller
* Ran phpcbf and split out some page content methods
* Tidied up some EntityProvider elements
* Fixed issued caused by viewservice change
Added versioning file instead of using git tags
(Step towards removing git as a dependancy in the future)
Updated gulpfile to fit with verisioning system and cleaned
up node dependancies.
Fixes#108
Since the old library was GPLv3 i changed the color picker to tiny-color-picker which is MIT.
Also extracted the styles to a shared view and move color calculation logic to javascript side.
This certainly should not be seen as the final implementation of this.
I imagine that requests like this will happen for many other colors in
the system, it might be good at some point to allow them to upload their
own stylesheet to be used.
