It has not been easy to select language pages on
"More Releases & Languages" dropdown list since
there are many releases (currently, 18).
This patch splits into "More Releases" and "Languages"
dropdown lists by:
- Changing from 9 to 8 for col-lg/md/sm-* in the left part
- Allocating 2 for col-lg/md/sm-* in each dropdown list
- Removing unnecessary dropdown-header part
- Changing on dropdown-menu width from 100% to 150%
since original "More Releases & Languages" was allocated
as 3 and the number 3 was changed to 2.
Change-Id: I4fd1c345dfd3debd14167839c1b93c69a3d3027e
4436532cd4