emulators/linux_base-{f10,c6}: fix locales installation

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=183247
x11-toolkits/linux-c6-gtk2: install gtk2 engines like f10

This should make linux gtk2 apps have the same look as native.
For example, put the following into ~/.gtkrc-2.0

  gtk-theme-name = "ThinIce"
adding ' to echo 'kld_list="linux" >> /etc/rc.conf
Update to r364078
New lowercase method
Upgrade category Makefiles to r364081
Upgrade category Makefiles to r364081 pt.2
Remove killed ports
Mk/bsd.linux-rpm.mk: Cleanup conditionals. Fixes #41
www/linux-{f10,c6}-flashplugin11: use ALSA instead of libflashsupport