Mention support for begriff package in README
Update to lastest version of pdftex.js
Add flattr button
Merge branch 'version1' into texlive-gh-pages

Conflicts:
	.gitmodules
Merge branch 'texlive-master' into texlive-gh-pages

Conflicts:
	README.md
	website/index.html
	website/main.js
	website/pdftex.js
Add Jekyll-omit file for github
Add license and wiki
Add TogetherJS