Update_LB_README.rst

Full support for Octave ver 3.8.0 will be aviable in swig2.0 ver 2.0.12
Added enty "subversion" in Ubuntu install.
Added Building on Linux (openSUSE)

Version 3.8.0 tested on Xubuntu 14.04 Beta-1
Merge pull request #193 from Lebevc/patch-1

Update README for Octave