REFACTORING: Removed Numpy Installation
REFACTORING: Removed Numpy Installation

Numpy is already installed by the pandas installation. No need to
install it again:

LOG TRAVIS:
Requirement already satisfied (use --upgrade to upgrade): numpy in
/usr/lib/python2.7/dist-packages

AMOSus/amos-ss16-proj6,AMOSus/amos-ss16-proj6,AMOSus/amos-ss16-proj6,AMOSus/amos-ss16-proj6