Update documentation and configuration to 2014_10.0

Documentation and configuration use hard-coded
release number. So it has to be manually updated
for each release.
Split worker database configuration

Qserv configuration tool now configures
worker database apart from master database.
Previous code was only supporting mono-node
install.
Factorize SQL loader for czar/worker configurations

Qserv czar and worker configurations are now distinct
procedures, but they use the same script to load
sql files related to czar and worker databases.
Fix SQL scripts for worker and czar configuration

SQL scripts launched by configuration tool for czar
and worker didn't create the right tables at the
right place.