Lines increasing and decreasing indent no longer go below zero

Normally a line matched by both patterns will be decreased by one unit compared to the non-ignored lines immediately above and below. If however the line above was not indented, the line would in theory be decreased to -1 and thus just go back to zero indent for the line following it.
Allow home/end in filter lists

This goes to the first/last item and can be reached with fn-←/→ on laptop keyboards.
Rescan favorites folder when re-opening favorites chooser

Previously we only scanned the folder when creating the favorites chooser singleton which meant items added or removed after the chooser had been used, were not reflected before a relaunch.

Fixes #1182
Treat various archive types as binary
Embryo of developer documentation :-)

This is a document with information I found most useful as a
new contributor to TextMate - basic stuff a new contributor is likely
to get in contact with.

It's of course incomplete, sparse, can be not well worded and even contain
mistakes. But someone had to make the first shot :-)
Show warning if undo will delete non-empty document

Closes #1197
Support text links with VoiceOver

Now links in text (e.g. links to RFCs after installing the Hyperlink Helper bundle)
are announced as such with VoiceOver and it is possible to search for them with
VO-Cmd-L.

TODO:

* launching links with VO-Space is not supported yet, but Enter (Fn-Return)
  does the same thing and is even more reliable.
* link URL is not supported, so it is not possible to learn the URL
  with VO-Shift-U.
Track softline count in layout
Provide conversions between softlines and buffer positions
Use softlines instead of hardlines for accessibility

Fixes #1149.

VoiceOver expects AXLineForIndex and AXRangeForLine to be consistent with
the movement by line using arrow up/down. That means it expects "line"
to mean softline.

VoiceOver also distinguishes commands to move by:
* paragraph (hardline): VO-Shift-PgUp/PgDown
* line (softline): VO-up/down

These are available when interacting with the text area (VO-Shift-down).

This commit therefore fixes the AXLineForIndex and AXRangeForLine
to make "line" mean "softline" instead of "hardline" as was the case
until now.
Fix accessibility visual bounds ending at line boundary

Accessibility visual bounds for a range of a single softline should always
be also visually restricted to the softline. This is in order to be consistent
with implementation in Apple's apps (e.g. TextEdit).
Support getting AXVisibleCharacterRange accessibility attribute
Updates link to Homebrew, to a functioning link.
Remove use of NSPointToCGPoint

This is not required when building in 64 bit mode or when defining NS_BUILD_32_LIKE_64.
Add query component to scm URL

Previously when constructing a scm URL from a path, if scm was not enabled
we returned a file URL. This could result in some unexpected behavior.
For instance, when a directory was selected in the file browser,
activating "SCM Status" would just open the untracked directory.
This patch, insteads, adds a query to the scm URL that can be parsed to
determine how to handle the scm status request later on.
Only enable “file” services for file browser context menu

The services support in the file browser was mainly added to allow Quicksilver to grab the selection, I do not recall if this is why the selection was (also) made available as a regular string (in addition to the “file names pasteboard type”).
Handle dropping CR delimited text

Also filter malformed UTF-8 sequences from dropped text.