The role of the master server as the party controlling every part of the
cluster is not well reflected in its name and has caused confusion among
users on several occasions. Rename master to controller to better
reflects its role.
Technologies that were disabled were ignored completely by research sync
due to a missunderstanding of what disabled means. Disabled does not
mean the tech is somehow inaccessible and completely out of play, it
only means it can't be selected in the technology screen.
Ignore the enabled status of technologies in research_sync to fix a
crash that happened when a mod enables a disabled by default technology
and the player attempts to research it.
Convert code indents to tabs to be consistent with the rest of the
JavaScript code. This commits covers all of the lua code, some of the
hand written JSON code and the lone HTML and CSS files that were not
using tabs.
Fix crash when technologiy level stored on the master is greater than
the max_level for the technology in Factorio. This can happen with mods
that for example reduce the max_level from inifity to a finite level.