Update config for latest jekyll
Add .md extension to _README, add symlink README.md to it
Tweak README further
Improve README
Some more tweaks
Link to ReleaseTools
Add license info
Add contact info
Add list of packages using GitHubPagesForGAP

Closes #2
Fix typo in README
Tweak stylesheet to not cut off package name
Display current package version in side bar
Add upgrade instructions
Merge branch 'gh-pages' of https://github.com/fingolfin/GitHubPagesForGAP into gh-pages