launch, config files are installed flatten on share directory

[furushchev]

@TheDash I wonder why launch, config files are installed flatten on share directory regardless of package directory structure? Now, we must change launch files to bring up pr2 along with which this package is in installed or in devel like below:

• if pr2_mannequin_mode package is catkin_make installed or deb installed:

  <rosparam command="load" file="$(find pr2_mannequin_mode)/pr2_arm_controllers_loose.yaml" />

• if pr2_mannequin_mode package is catkin_made:

  <rosparam command="load" file="$(find pr2_mannequin_mode)/config/pr2_arm_controllers_loose.yaml" />

[furushchev]

I sent pullreq to fix this problem. https://github.com/PR2/pr2_apps/pull/17

[furushchev]

Thanks for merging :+1: please release deb ASAP to affect this fix.