Add plugin constants
Rename and move comments template file
Correct typo in class name for anonymous commentor
Update path and file for comments template
Delete old comments template folder and file
Move textarea auto expand js plugin to lib folder
Move CSS and JS folders to lib folder
Reorganise CSS and JS folder locations

Now in root, not lib
Update plugin folder url
Update file path info
Use new constants for plugin folder references
REmove old plugin headers variables