upgrade bittorrent-client
0.2.6
readme: remove talk image
added @fisch0920, @astro, @ivantodorovich as contributors

If I am missing anyone, please send a PR and add yourself!
make contributing instructions clearer
add webtorrent.js coming soon link
upgrade bittorrent-client and pump
add some sample torrents
pass cb thru to client.add
updating webtorrent with working commandline interface based off of peerflix; removed old and unused code
fix for invalid torrents passed via commandline
removed unintended double-newline
merging latest changes with addition of working commandline PR
style fixes
added time remaining estimate to console output; several small fixes
merge changes
removed extraneous comment
stream to VLC is now working
adding FSStorage; webtorrent now can save the results of a torrent download to the filesystem
added small optimization to FSStorage.readBlock to read blocks from in-memory buffer if possible