Merge pull request #510 from pyhalov/oi/hipster

gnome-gettext update (from JDS)
Add jq from oi-build
Merge pull request #511 from pyhalov/jq

Add jq from oi-build
pci.ids: add dummy download target
Fix userland-unpack handling of paths starting with a /
Make NVIDIA component work when USERLAND_ARCHIVES is set and bump version to 334.16
ips2tgz update and fixes to the packages that use the script
setup.py.mk: don't use COMPONENT_BUILD_ARGS from environment
Fix build when USERLAND_ARCHIVE variable is set
Update some download URLs
tracker: fix build on systems where tracker is already installed
Fix libidn