master-updates

* (HEAD, origin/glossary, glossary) UI: updates to "glossary" page styling
* glossary: sorts json objects alphabetical in file
* UI: adds link to the "Glossary" from Education
* UI: adds "Glossary" page
* glossary: updates anchors in json file
* UI: adds route for '/glossary'
* (all-updates) templates: updates ordering and adds 500 field
* ATLAS: updates "Higgs Challenge 2014" xml file
* templates: adds LaTex displaying through MathJax
* templates: updates "Disclaimer" text
* UI: fixes in collection-boxes
* templates: creates macro for home exp-dropdown
* UI: creates page for "Atlas Higgs Challenge 2014"