Fit metabox in the sidebar + a bug fix

Solution for the issue #56
Metaboxes in the sidebar BEFORE: http://grab.by/v76O
AFTER: http://grab.by/v9lw
CSS Technique taken from http://blog.easy-designs.net/archives/responsive-tables/

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The other commit: Fit radio-image into sidebar metabox
Before: http://grab.by/v9Hq
After: http://grab.by/v9Hw

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The error fix commit:
I'm using multicheck-posts option in a metabox, and I received this error:
```
Warning: in_array() expects parameter 2 to be array, string given in 
/wp-content/plugins/titan-framework/class-option-multicheck.php on line 30
```
I printed out $savedValue and found out it's a serialized string. So I unserialized it using cleanValueForGetting method and it's working now.
Did you test multicheck options before?
Even in the demo theme ( http://demo.titanframework.net/wp-admin/post.php?post=2&action=edit ) you can't check any of the checkboxes (when you save the page they become unchecked again). And it's not displaying the error probably because debug mode is off.

Note: I used unserialize() function first instead of cleanValueForGetting method, but it gave me another error somewhere else where I was using 'multicheck' option and it didn't need to be unserialized because it was already an array.