remove unesscessary line from README
Merge branch 'develop' into twopointoh
rename `explicit_end` to `stream` in prep for behavior change
incomplete input now results in an error when parsing json

streaming decoding is now only available when forced with the
`stream` option and no longer returns until forced to via the
token `end_stream`. this api is still subject to being replaced
with an even more explicit streaming mode
remove deprecated option flags handling
undo `optimized' ordering of string parsing clauses in decoder