liboping: moved to github

Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/packages@41461 3c298f89-4303-0410-b956-a3cf2f4a3e73
postgresql: moved to github

Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/packages@41462 3c298f89-4303-0410-b956-a3cf2f4a3e73
lm-sensors: moved to github

Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/packages@41463 3c298f89-4303-0410-b956-a3cf2f4a3e73
owfs: moved to github

Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/packages@41464 3c298f89-4303-0410-b956-a3cf2f4a3e73
net-snmp: moved to github

Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/packages@41465 3c298f89-4303-0410-b956-a3cf2f4a3e73
packages: remove empty directories

git-svn-id: svn://svn.openwrt.org/openwrt/packages@41466 3c298f89-4303-0410-b956-a3cf2f4a3e73