Added getSections() method.

I found that is impossible to get template sections from a View object
so I made it possible. This is good expecially when AJAX comes into
play.
Added renderSections() method.

I found that is impossible to get template sections from a View object
so I made it possible. This is good expecially when AJAX comes into
play.

Since the property 'section' is updated once the View has been rendered,
the correct usage is that:
```php
$view = View::make('pages');
$sections = $view->renderSections();
```
Removed old property.
Removed old code.
Restored comment on render().
Include called class name in ModelNotFoundException
Cleaning.
type check of relations
added test
Fixes issue where php path has spaces in it
Allow , in wildcards
Oops
Use requestClass class.
Merge pull request #2749 from philsturgeon/patch-1

Allow , in route wildcards
Fix bug with filter method on class filters.
Merge pull request #2738 from GrahamCampbell/master

Fixes issue where php path has spaces in it
Add table_shema to select query
Adjust getColumnListing method on the MySqlBuilder class
Merge pull request #2754 from PhiloNL/bug/fix-mysql-has-column

[bugfix] Add table_shema to getColumnListing select query
Add space.
Working on IronMQ attempts.