ignore files other than .log files in the result directory
fix format when printing rpms without buildroot
allow setting the timeout for builds from config file
allow setting build priority

When building for multiple tags it could be useful to set different priorities
for the tasks, eg. rawhide builds will be lower prio than branched builds.
event args for list-groups
never make backups of files that are patched so they don't end up in source jars
also test maven_repo_ignore patterns against the relative path of the file in the local repo
add image tasks to method filter
fix task option ordering for images
avoid int overflow in get_archive
fix parameter formating for image
skip fake packages when recording buildroot and image contents
fix bug in buildtag policy test
ppc64le is a new arch that needs to be seperated from all others

ppc64 little endinan is incompatiable with all other ppc64 arches
it is only compatiable with noarch, its a new basearch in yum and
separated in rpm. this patch makes sure we treat it seperate in koji
fix raw format behavior
add image archives to buildinfo
support --ova-option
support images for CentOS and SL
treat kickstarts as artifacts
add docker support