Do-nothing commit to test something.
Fix minor bugs that negatively affected accessing the about page on non-Pi devices.
Add initial plugin support

Plugin design notes:

* New configuration option for web UI pluginDirectory
  (Default of /opt/fpp/plugins)

* Menu will search plugin directory for plugins to include.
  - To add a UI item, an include file will need to be present
      o status_menu.inc - List elements to add to the status menu
	  o content_menu.inc - List elements to add to the content menu
	  o output_menu.inc - List elements to add to the output menu
	  o help_menu.inc - List elements to add to the help menu
  - New basic file plugin.php will take parameters to load plugin
    pages with same formatting.  Instead of using a plugin page directly
	which may or may not be in the docroot, and also so plugins don't
	have to be updated with UI changes, instead this page just loads the
	content from pages provided from the plugin
	  o plugin parameter - Which plugin to load a page from
	  o page parameter - Which page from the plugin to load (If none
        given, it will attempt to load "plugin.php" from the top level
		of the plugin installation path)

* Remove rds.php which wasn't linked anywhere, but was going to be the
  landing spot for RDS work before the plugin system was discussed.
Rid uploaded scripts of DOS newlines if they have them
Unset the output variable so it doesn't collide with other files that use that variable name in exec which appends output to the given array.
Quick whip-up of a plugin install/uninstall system

* pluginData.inc.php - Contains the list of plugins and appropriate
  data.  This is for developers to add their plugins to for details on
  plugin installation, home page, bug URL, etc.

* Scripts to install/uninstall plugins

* plugins.php - Page to display the list of plugins listed in
  pluginData.inc.php for users to install/uninstall

* No update check/support available yet.  Will need to implement
  something that uninstall/re-installs.  Probably easier in case the
  hooks change for plugins than trying to maintain an "update" system
  similar to the main FPP update system.

Icons released with CC license downloaded from here:
http://www.gentleface.com/free_icon_set.html
Force add a file to the plugins directory so it is created.  Without it, the directory isn't there and plugins fail to install.