moved the arrow styles to separate css file to stop copy/pasting and provide useful defaults
updated styling documentation and example links (that now work)
updated to address pointer-events problems in #32
northward
renamed to index.css; using base css in all examples
minor edits to styling docs
added CSS instructions to the README
move index.css to example styles
use new example stylesheet
update styling documentation
update read me, point it to new style location
Merge branch 'pr/34'