moved lmi meta-command to openlmi-tools repository
require openlmi-tools instead of openlmi-scripts

Subcommands now should depend only on openlmi-tools that contain both
LMIShell and LMI Meta-command.
updated readme
doc: use openlmitheme
doc: created common makefile for documentation

Makefiles for documentation contained redundant code. Created one
generic Makefile which is included by all the others.
doc: regenerated cli html documenation
makefile improvements

 * clean doc/conf.py scripts which are generated
 * fixed upload command
bumped version to 0.2.8 and udpated spec file