Heyho !
Generally, I work with the Bootstrap 3.3+ but for a specific freelancing mission, I have to work under the 2.3.2 version. I have an undefined issue under Phone view at the right of the layout.
I really don't understand how to deal with the Phone view under 2.3.2 version.
You can check the whole page here > http://bp-design.fr/Codeur
If you remove the left and right margin from <div id="footer">
and <div class="navbar navbar-fixed-top">
the horizontal scrollbar disappears.