Remove ./ext directory as it contains build-time leftovers
Shortify PKGBUILD's url.

They do not require quoting.
Shortify PKGBUILD arch=() field
Remove unneeded quotes from depends
Remove unneeded double-quotes from url
Replace double-quotes in description with single quote
Add git as a makedeps to all *-git packages
Add quoting required for $pkgdir
Remove unneeded quotes from license
Remove empty array values
Remove uneeded quotes from backup
Remove uneeded quotes from $pkgname
Remove unneeded quotes from source
Remove unneeded filename for git repository
Use more stronger sha1
Remove quotes from sha1sums
Replace double-quote with stricted single-quote
Github does not require .git suffix for the repos
Use standard versioning for *-git packages
Fix quoting