Make code more beautiful.
Fixing a styling problem according to PSR2
Template cache callback now will be call BEFORE template compile. This will give a chance to update template content (Like use inject method to inject template content).
Change way to handle template parameters. Now we have a new module for it: Paging/Compiler/Parameters.php. Template file needs to be updated to use it.

Still testing.
Add allowed space symbols.
addTag method has been removed. If you want to add tag to compiler, extends it as most methods in it is protected (not private) now.
Update compiler interface.
Most compiler tags now support mulitline
Little change.

Format value will be trimmed before pass to tag parsers.