Add [ ] and if, then, else, fi, remove runif

[evaera]

#25 should now be [ command

Add success status to commands

if increases conditional depth, fi decreases. then and else check stack at the current depth.
elif checks if current depth is false, if so, replaces it

if [ ${hover} == evaera ]; then announce "It's evaera"; else announce "That's not evaera!"; fi

; separates commands

Each command sequence needs a unique id to separate it from other concurrent commands