Made multiple changes.

* Introduced AbstractAdmin.php
* Made changes to reflect above change
* Working on Admin Dashboard
* Many other changes
Working on porting the Charisma Admin Dashboard template. Still need to work on sidebar nav.
Adding files that were missed in last commit.
Updated PureCSS to newest version (0.3.0). Other misc changes to admin dashboard.
Left admin sidebar is now dynamic
Fixed a path issue regarding admin dashboard theme switcher/ajax sidebar menu cookies
'Installed Plugins' page is complete.
Some naming scheme changes to Plugin Manager.
Moved the 'Ciao' plugin out of the Axis plugins directory into the 'zones/all/plugins/provider' directory. Updated installation to reflect this change.
Plugin Manager 'Install Local Plugins' is finding local Plugins that have not been installed yet.

This commit contains unfinished code.
Can now install local plugins. There is virtually no error checking yet, but it works if the plugin is located in a proper folder and the 'datails.php' file is correct.
Multiple Changes. See commit message for details.

* Can install plugins that have db schema
* Modified sidebar nav, it will now accordion
* Moved from remote PureCSS to local PureCSS
* Started integrating 3rd party css/js tools for use in plugin development, theme independent
Fixed installation issue and included the Symfony Finder Component v2.3.
Adding missing schema.php from Ciao plugin
Fixed some issue regarding AllianceCMS and plugin installation.
Removed left sidebar nav accordion for the time being.

* Charisma.js auto-active only works if the current uri is the link href, not for subpages. This causes active plugin's accordion to be closed on page load.
Fixed some issues causing PHP Error Notices
Couple more changes regarding PHP Error Notices
Started changing AbstractPlugin.php __construct and $this vars in all current Plugins
Moved AbstractAdmin.php to 'Acms.Core/src/Acms/Core/Components' and made adjustments to related code. Also made alterations to Blocks.php and related code.