added sparkle stats php script URLs for #322
added system specs checkbox for #322
wired up sparkle code for enabling sending system specs for #322
wired up NSButton for #322
added send system specs UI control for #322
Generated internationalised versions of GeneralPreferences.nib
changed wording of preference for sending system profile
changed preferences options for #322
added NSAlert to display if the user hasn't set a preference for sending system profile before
Merge pull request #325 from josh64x2/#322

#322 Added Sparkle System Profiling support