* Adds [phpcs](https://github.com/squizlabs/PHP_CodeSniffer) and [Wor…

…dPress Coding Standards](https://github.com/WordPress-Coding-Standards/WordPress-Coding-Standards) based Syntax Checker.

  * Thanks to @sudar!
* Upgrades to WordPress 4.0.

* Adds support for nested plugin directories like,

  `foo-plugin/repo/foo-plugin.`. This detection assumes that the
  in-between directory contains the keyword `repo`.
* Improves error messaging if WordPress path is not detected.
* Improves excludes list passed to `ctags`, better fix for #16.

* Built using @tek's Riml fork.

  * Fixes issues with Vim > 7.4 p260.

Improves CTags generation messaging.

* If Ctags is not found, no generation messages.
* :Wctags! shows an error message if Ctags was not found.

Improves Ctags Executable Detection.

Now runs 'ctags --version' the first time and checks if it is actually
CTags. On Mac OS X, `ctags` is linked to an unrelated program that is
not actually `Exuberant Ctags`.

* Cleans the Generating ctags message.

* Removes loading message.

  * In hindsight this also speeds up startup since we skip
    the extra `:redraw`.
* Adds Exclude files to Ctags builder to speed up tags generation.
* Improves WpCli error handling of invalid json.

Improves error messaging when wp-cli is not detected.

Removes debug message from 0.1.13

Adds readme.txt validator.