Fixes DownloadManager for IE10 and above
Merge pull request #4689 from timvandermeij/ie-attachments

Fixes DownloadManager for IE10 and above
Prevent trying to map characters to the specials unicode block in adjustMapping (issue 4650)
Merge pull request #4701 from Snuffleupagus/issue-4650

Prevent trying to map characters to the specials unicode block in adjustMapping (issue 4650)
link to FAQ
Adds FAQ link
Merge pull request #4707 from bthorben/patch-1

Link to FAQ from startpage
Catch error when the creation of localStorage polyfill fails in the generic viewer
Refactor how the database is read in ViewHistory
Added reject polyfill and PromiseCapability
Merge pull request #4700 from pramodhkp/refactoring

Reject polyfill and createPromiseCapability
Merge pull request #4705 from Snuffleupagus/ViewHistory-refactor-read

Refactor how the database is read in ViewHistory