[doc] style tag use solarized flat colors
Merge pull request #465 from pierriko/style-tag-colors

Merged, thanks
[edit] do not exit on error in edit mode

c/p `morse_excepthook` in `morse.blender.main` to avoid circle
dependency.

fix #456
[human] Added a service for grasper robot and modified pr2

The request magic_grasp("object_name") was added to grasper.
It allow a robot to grasp any object and attach it to the arm.

pr2 elbow inverse kinematics joint limits was inversed

I didn't change anything in pr2.py but I guess we
should use something like:
bpy.data.objects["pr2.torso.r_arm"].pose.bones["r_elbow_flex_joint"].ik_min_x= -2.321
bpy.data.objects["pr2.torso.r_arm"].pose.bones["r_elbow_flex_joint"].ik_max_x = 0

and same with left one.

Problem is "pr2" is not yet define at this step...