Parial implementation of joint/cart trajectory points
Added constructors for joint and cartesian trajectory point
Merge branch 'hydro-devel' of https://github.com/ros-industrial-consortium/descartes into trajectory-pt-impl
Reverted setDiscretization method
Updated namespace in preperation for package renaming (see issue #12).  Namespace aliases used to maintain backwards compatability
Added temp files to gitignore
Added test files for basic trajectory point construction
Removed redundant copy constructor
Merge pull request #15 from shaun-edwards/trajectory-pt-impl

Trajectory pt implementations