x86_64 is used as a baseline: the "x86_64" entry, whatever status it has,
is transformed into "all", and then the other entries in ARCHITECTURES
either dropped or rearranged appropriately.
* Referring the current haiku version explicitly is not needed, since
the RequiresUpdater takes care of setting the version of Haiku used
for building a package.
* Fixed PROVIDES/*REQUIRES entries
* Added vcs hashes to the ports needing it in the SRC_URI
* Made single executable apps install to the top level $appsDir
* Added patches for gcc4 versions of most apps
* Added patches for apps that couldn't build on any arch
( even though they were marked as working :( )
* Other misc fixes that I've forgotten already because I'm sick of
looking at this directory