resource conversion now in place
fixed issue #79
tweaks
got resources stats working, but wrong values seem to be appearing...
fixed up the mining references - mining and resource collection is now green!!!
internationalized resources
set up resource consumption on build
proposed fix for Arthur's bug
fixes #85
fixes issue #83
UI work on executive overview
fixed resource tab bug and some UI work
fixed map display bug
fixed zoom bug --- again...
large part of undo function done
I undid the undo function because a) it's hard and b) shouldn't be necessary if a tutorial + confirmation button is present
basic menu setup for research
alternative approach to the research function
automatic poplating of the research menu
onclick behaviour added