fix method names in docs
arn't --> aren't
assuption --> assumption
definately --> definitely
existance --> existence
seperate/seperator --> separate/separator
RT 67264: fix spelling of Tom Christiansen
RT 30863: spelling fix
RT 51693: fix pod markup containing '>'
RT 45014: parse '12.34..56.78' parsed as version string + '..' + float
RT 36540 -- support upper case in hex and binary numbers
Merge branch 'rt36540-ppi-token-number-hex-upper' of https://github.com/moregan/PPI into rt36540-ppi-token-number-hex-upper