Remove click-through EULA on install buttons
Merge pull request #1643 from diox/drf-2_3_12

Update to DRF 2.3.12.
stage/settings_base: python-memcached -> pylibmc.
Revert "block downloads if you haven't paid (bug 952731)"

This reverts commit 60390db5d23592435be0d40dc2f24d047cb57646.
Merge pull request #1603 from magopian/remove-click-through-eula

Remove click-through EULA on install buttons (bug 743829)
fix region flags
add germany/brazil iarc-specific region exclusions (bug 960308)