Added support for SQLite.
fix #16: only first occurrence of a match group parameter is replaced
started adding a module for on-demand AWS slaves
document dbid parameter in gbrowse_img
Merge branch 'master' of github.com:GMOD/GBrowse
work on AWS load balancer module
basic information retrieval done
worked on load balancer module, but will not yet compile
at least basic regression test works
needed for testing
AWS balancer module ready for testing
balancer ready for testing
fix configuration file location
fix configuration file location
fix configuration file location
various fixes to run properly
fix ping_slave so that it works  properly
more fixes to ping_slave
reconfigure master when a slave is removed
Better detection and handling of render slaves that have gone now. If all slaves are down then throws an error (once) and then reverts to local rendering for a period of time.