fixed return type of bfs_push
implemented bfs_moveip to advance the instruction pointer
added method to print stack
started to process characters, and fixed error wrapping left
added newline to printing stack
implemented mathematical operations and directional ones
added implementations for most commands. reading input not working yet
changed stack back to being integer-based, solved problem of reading input (hopefully), and changed printing stack to only print numbers, no chars
implemented g and p commands
set up basis for string mode
added handling of quotes to enter and leave string mode
added bounds check on g and v (push 0 and do nothing, respectively, if out of bounds)
Updated README
added comments
Fixed randomly changing direction