added UA header, and Authorization header based on DPASTE_API_TOKEN env var
less markdown in readme; updated sample session
removed obsolete 'poster' param
minor fixups
added xdg-open/open logic to URL opening
give the echo command a -e option so it behaves as expected in Linux and BSD; closes #1
moved getopts credit comment
README.md edited online with Bitbucket
changed to xdg-open, added URL output
README.md edited online with Bitbucket
README.md edited online with Bitbucket
added dpaste.sh, simple CLI client