various fixes
refactor: prefix all profile variables by CONF_
rework config and updating code to allow extra module (addons, extra) to be archive or git repo.
cmd install: allow to install directly using template (odoo/VERSION)
run-server: using same server script for 'master' as 7.0+
cmd internal: allow to run 'check-odoo-depends' alone
cmd config: add command to get and set profile options
bugfix: show 'loading profile' message starting from 'debug' loglevel
bugfix: use correct dir for separate addons repository
cmd client: allow to fetch and start gtk client (for old odoo version)
bugfix: follow git standard, use 'master' branch if no explicit value specified
cmd config: add '-u' to remote option from confix + fix some corner cases for last config section/option
database ops: use the pgsql command specific to server version if available
bugfix: erun should quietly log all command output and return correct 'return value'
bugfix: login when updating a section, group all section updating
profile/config: remove training white-space on option value
config: rework addons-path computation, server and db config generation