ARC: Update Preferences framework
Fix command input with column selections

Discontinuous selections are still not supported for commands — probably the command should be run for each selection.

Issue #524.
Add comma to release notes
Fix typo in comment (NSMneu → NSMenu)
Apply default gutter theme when no theme is active

Previously, if no themes were active, the gutter colors would
not be set.  This would, effectively, give you random gutter colors
on TextMate startup. (or, sometimes, a completely transparent gutter).
Don’t link with QuartzCore

This was originally done for CoreAnimation (which is no longer used).
ARC: Update BundleEditor framework
Add ‘filepanel’ command to DIALOG
Make command properties drawer shorter.

Re-layout input & output fields, so they don't enlarge whole drawer too much.
Spell out that “prebuilt binaries” is a link

A user may read the text and use GitHub’s download button, thinking this is what the README refers to.
Allow disabling document status in file browser

Disabling this is achieved by setting `fileBrowserDocumentStatus` to `false` in `.tm_properties`.

Disabling it should remove potential delays after opening, closing, and saving files when file browser is showing a lot of files. It is meant as a temporary workaround until the performance issues are addressed.
Update CxxTest
Don’t output markdown headers when generating HTML
Evaluate embedded ruby in markdown files

This is when generating HTML for the release notes, manual, and, where we actually need this, list of contributions.

Long-term we should probably switch to template tags as we are effectively adding code to the (otherwise declarative) build graph, which means we don’t have any way to tell if the generated HTML is up-to-date or not (as that would require analyzing the embedded ruby code).
Add dynamic contributions page to the About window
Seed the contributor lookup table a bit.
Checkin release notes
fixup! Allow disabling document status in file browser

If ‘location’ was nil, we would implicitly create a std::string from that, which is not allowed (and crashes).
Checkin release notes
Limit file browser refresh on open/close

If changes are limited to visible rows, we only reload these.