add collection xml for csv files of dimuons
rm explicit version from url
rm explict version from url
CMS: fix link to VM image

* Fixes link to CMS VM image that uses semantic versioning
  now (`CMS-OpenData-1.0.0-rc4.ova`).  (closes #331)

Signed-off-by: Tibor Simko <tibor.simko@cern.ch>
templates: rearrangement of "About CMS Data"

* Rearranges "About CMS Data" text.  (closes #313)
news: fixes html escaping in news page
collections: text in small collection boxes (upd)

* fixes error parts for previous commit (addresses #265)
collections: "External Resources" page styling FIX
UI: updates text for "VISPA"

* "visualize" -> "visualise" , “analysis” -> “analyses”
* (addresses #160) (closes #327)
records: update to display more metadata info

* (addresses #333)
UI: dynamically populate education/research pages

* (addresses #322)
UI: overlay and record FIXES

* FIXES to 9638a46dd3d5ea85cc4c4c7e84020fee007c1876
base: addition of D3 to bundles

* Adds D3 to bundles.  (PR #336)
templates: first pass at adding histograms

* First pass at adding histograms from dimuon csv.
  (addresses #199) (PR #336)
templates: logx/logy in histogram visualisation

* Adds logx and logy toggles to histogram visualisation.
  (addresses #199) (PR #336)
fixtures: introductory text for collections

* Updates introductory text for CMS Derived Datasets and CMS External
  Resource collections.  (closes #301) (PR #335)
docs: addition of new CMS CSV files

* Amends installation instructions to reflect addition of new CMS CSV
  files.  (addresses PR #330)
homepage: updated layout for better UX

* (closes #19)
UI: updates resources/vispa

* removes notes from “External Resources”
* (closes #327)
UI: rearranges header Nav