New version of pdf.js.
Updated Meteor.
Made login form be displayed only once. Fixes #99

Style does not work completely as before anymore. Has to be fixed.
Updated Meteor to allow template overriding.
Added Gravatar icons for users.
Updated Meteor again.
Added SHA256 function.
Update to API.
Bugfix.
Added client side implementation of SHA 256.
Bugfix
Updated packages.
Merge branch 'master' of github.com:peerlibrary/peerlibrary
Merge branch 'master' into new-annotations2