Creating Launcher in Ubuntu Unity GUI

Ever since I upgraded to PyCharm 4.0.5, I can't use the Ubuntu Unity launcher bar to launch PyCharm.  

I start PyCharm from /opt/pycharm-4.0.5/bin/pycharm.sh, but get a gray question-mark icon (aee attachment) rather than the Orange/Green PyCharm icon.

More importantly, though I can right-click the icon and choose Lock to Launcher, this icon does not work to launch PyCharm.

How can I get a convenient button  to launch PyCharm from the Launcher?

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