Fix #37260 Weird behavior in adding gears from extra objects Addon.
All angle values must be defined in radians. The pressure angle was using a plain default value of 20, which in radians is way out of the sensible min/max range.

git-svn-id: https://svn.blender.org/svnroot/bf-extensions/trunk/py/scripts/addons@4818 96b784f8-4ae3-dd11-aff7-0030488c597c
update for change in blender


git-svn-id: https://svn.blender.org/svnroot/bf-extensions/trunk/py/scripts/addons@4819 96b784f8-4ae3-dd11-aff7-0030488c597c