Merge pull request #123 from LeoIannacone/master

New design for run dialog
rundialog: Use override gio-unix vapi
budgie-1.0.pc.in: propagate configuration parameters

Use the parameters passed to the configure script,
instead of hard-coding defaults
Merge pull request #124 from michel-slm/fix-pkgconfig

budgie-1.0.pc.in: propagate configuration parameters
rundialog: add effect on showing applications

Add effect on showing widgets. Animation by default is 100ms long.

Code beautified.