By hannesno more headaches unfreezing and unhiding refplanes manually
the RefManager does it for you and lets you focus on the modelling
A reference manager that automatic hides and shows reference planes based on the current viewport
by default it uses the following names, but you can click on >> to get acces to the pick buttons and pick your own reference planes
ref_top
ref_front
ref_back
ref_left
ref_right
ref_top
ref_bot
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plans for next version : add refsetup: auto creates planes in correct size based o nthe resolution of the images
add unsmart mode, incase you dont want autohide and only use the basic features (boooo!)
