[aur-general] updated PKGBUILD for gcc-avr

[Gerardo Exequiel Pozzi]

  Hello,

I am again around here :)

* update from 4.5 snapshot to 4.5.1, no other changes needed.
* remove || return 1
* use ${_basedir} like gcc package for select snapshot/release
* add missing custom licence

Patch against svn trunk can be downloaded from here 
http://gist.github.com/546973

Good luck!

-- 
Gerardo Exequiel Pozzi
\cos^2\alpha + \sin^2\alpha = 1