#2039 Accept block for download_links
#2039 Ensure that download_links supports stabby proc syntax `-> {}` by using `instance_exec`
#2039 Remove unused restricted AdminUser leftover from manual testing.
clean up a chunk of the docs
No empty space for hidden fields
convert the README to Markdown :octocat:
remove old / misleading code
:sparkles:
Remove old, unused dashboard_section helper
Deep copy the filters hash.

Filter :if and :unless options were being deleted and thus only
used for the first request.

Deep copy of the filters hash allow safe deletion of filters' options
like :if and :unless, to pass a clean set of options down the line.
Merge pull request #2523 from PChambino/patch-1

Don't delete :if and :unless from filters
Prefix columns classes with `col-`
Use class based on column name for AttributesTable rows
Use `parameterize` to generate class from column name
Class default to .row and .col
move installation instructions out of the README

by removing duplication it's easier to keep it updated
reword part of the README
update README so the sentence fits on a single line
use shields instead of badgr for Gittip badge
Merge pull request #2040 from creativecommunion/2039-accept-block-for-download_links

#2039 Accept block for download_links