more space in sidenav. Better spacing of le docs sections

BS3 commits a285a3db3f46a8134ef53b85369b6797e6473acb,
e3b8081b7ec12649f2a260dbff6fd6540773f52d
update docs nav targets. Fix broke ass popovers direction example

BS3 commits 178d8e98deff6d3f69b7a8f89fc345d65b563670,
d16396f44ab01b3da09851302036019bb880d5c
Upate IDs on components page

BS3 commit 22fda2f54d748bf9e9fd02846a4d111366ee56b5
Update IDs on css page

BS3 commit d89c3b9d232e373eabb8559c8eb852e319c6b384
Use some vars for key urls for easier updating. Tweak getting started section. Update IDs on getting started page

BS3 commits 305455a9b323f0dd43477055dae28b0d063c0880,
71acb0c42bd120c61e2943f3d794a0b8a905644d,
e2d497c385261ee03b7f0ed6caf5cc466080eeb0
Use some vars for key urls for easier updating

BS3 commit 305455a9b323f0dd43477055dae28b0d063c0880
update docs nav targets. Fix broke ass popovers direction example

BS3 commits 178d8e98deff6d3f69b7a8f89fc345d65b563670,
d16396f44ab01b3da09851302036019bb880d5c7