moved uploaded mesh profiles to tmp before copying to /etc/commotion/profiles.d/ to allow name collision checking
added check for name collisions with extant profiles in /etc/commotion/profiles.d/
added warning to user when a name conflict occurs
added 'radio' button to meshprofile.htm, which is called when passed the variable 'OW' (overwite) from meshprofile.lua
added 'confirm' button. If the user clicks 'yes'->'confirm', the new profile will overwrite the existing one
profile uploader now allows user to decline overwriting the existing profile
Merge pull request #41 from opentechinstitute/issue20

Check for name collision when uploading new mesh profiles