changed robot module dependencies from 'use' to 'require'
made shorter aliases (without 'robotwar.' prefix) for all namespaces
changed name of foundry namespace to assembler
got random register test working
got index/data register pairs working
changed damage so it goes up instead of down
added TICK_DURATION constant
minor whitespace adjustment
added default registers AIM, SPEEDX and SPEEDY
changed todo list comments about registers still to be done
added some distance, time and acceleration functions
fixed typo in namespace require section of robotwar.core
added to inspection functions in core.clj
fixed bug in ppt in core.clj causing it to refer to old hard-coded info rather than passed-in parameters
changed parameter-pass-in format to ppt in core.clj, to registers flattened in the argument list