Add note about serving public as web root

Laravel 3 docs had a little more specificity regarding the fact that only the public folder should be web accessible.  This change adds back this recommendation.  Inspired by this forum post: [http://forums.laravel.io/viewtopic.php?id=6751]
Removed mention of bundles
Small typo fix on configuration page
Update replacement .htaccess file

I updated the replacement .htaccess file with the recent changes in on the Laravel develop branch. I also generalised some rules and put them in the same sequence as the original version.

Signed-off-by: Dries Vints <dries.vints@gmail.com>
Merge pull request #192 from driesvints/dv/update-replacement-htaccess

Update replacement .htaccess file
Merge pull request #186 from briankiewel/configuration-typo

Small typo fix on configuration page
Merge pull request #183 from memco/patch-3

Add note about serving public as web root