made kinematics_plugin_name param

This is a port of Kaijen's commit 55280 from the old SVN; it's in
Fuerte, but got lost in translation to Groovy.
Merge pull request #12 from mintar/plugin_name_param

made kinematics_plugin_name param
added dependencies on newly catkinized stacks
Merge pull request #13 from mateiciocarlie/groovy-devel

More fixes after robot testing
tagging 0.7.3 version
made robot/gripper markers always visible so they don't disappear when using the controls
Merge pull request #14 from dgossow/groovy-devel

made robot/gripper markers always visible so they don't disappear when u...
changed version number to 0.7.4
Merge pull request #15 from KaijenHsiao/releasing-0.7.4

changed version number to 0.7.4