minor content edits in README
who likes manually wrapping their lines? this guy ^
remove bin dir, move script to base dir
simplify build process and configuration

remove largely irrelevent rebar config and provide alternate build
config for hipe compiler. update README to reflect changes
change extension on markdown files

rename README.markdown -> README.md and CHANGES.markdown -> CHANGES.md
rename jsx_bench.escript -> jsxbench
reintroduce travis-ci build indicator
hat tip to travis for integration testing
juggle order of README intro
more README tweaks
remove superfluous clause in encoder
add `{raw, <<"...">>}' handling to parser

this is an experimental feature to support the elixir wrapper for
jsx. interface may still change
Merge branch 'develop' into mebbefaster
beam assembly to alloc larger binaries, yey
use new alloc function to prealloc larger binary chunks