Macros: added key bind example.
Update keyboard_shortcuts_osx.rst

Add shortcuts for tabs and views
Update keyboard_shortcuts_osx.rst

Fixed cmd+num shortcuts
add metadata topics
minor fixes
edit metadata topic
Added some scrolling shortcuts
edit
edit metadata topics

more x-refs, code highlighting for xml, properly indented code blocks,
various other adjustments (including rephrasing some sections)
Also add a "seealso" block to the symbols doc
Address feedback from 7bf1ec38 (#102)
"document" -> "page"
Very minor adjustments

From ccb7f2b feedback.
Merge pull request #102 from guillermooo/new-topic-metadata

comments, symbols, metadata
Overhaul syntax definition docs and update to PackageDev's YAML changes
Fix a dozen build warnings
Use _static dir (from `html_static_path`)

This removes the dependency and works "just fine" for me at least.
I also think that bundling static html into the _static dir is better
semantically, but we could of course just add the old "backers_2014"
directory to the list (and remove "_static" because it's empty and
generates a warning).
Added some scrolling shortcuts

No, there's no "scroll up one page" that I have found. The ones I just added are those familiar old emacs key bindings which Sublime has been able to hang onto where they don't clash with OS shortcuts. So they're not a complete set ... but useful nevertheless. These and other emacs shortcuts are used all over the place including the OS X Terminal for editing the command line.
Merge #37: Macros: added key bind example.

Conflicts:
	source/extensibility/macros.rst
Merge pull request #41 from LewisJEllis/patch-1

Update keyboard_shortcuts_osx.rst