support zypp's dir:// repos in the download helper
- avoid new lines in xml elements of _statistics file
- make sure all preinstalls are in the expanded package list [bnc#781327]
fix expandflags parsing
Add pkg-config to default arch.conf

pkg-config is expected to be found at building time and is not supposed to land in and PKGBUILD's dependencies.
Now in order to build many packages in obs one has to workaround this by adding pkg-config to makedepends.
Merge pull request #33 from zizzfizzix/patch-1

Add pkg-config to default arch.conf
support 'sign -p'
support DEBTRANSFORM-FILES to add additional files to the diff
mount /dev/pts with -omode=0620,gid=5 (thanks Andreas Schwab)
- fix newlines in _statistics file
debtransform: Add support for .tgz names

Adding support for .tgz as a valid tar.gz file name
as suggested by Michael Schroeder in
http://lists.opensuse.org/opensuse-packaging/2012-12/msg00034.html
- fix disk usage monitoring
- try to stop background build script monitor in a clean way
- do not collect statistics by default, usually only interessting for obs workers
- fix swapon call when no initrd is used (current armv7l kvm case)
- fix logic around statistics switch
- wipe old blocklist from former build on starting a new build
- use explicit test command in string compare
- run background monitor only when statistics are enabled
- kvm on armv7l support (by Alexander Graf)
- export times as part of build statistics
hack to workaround missing RTC on arm