Rewrites organization

- Create lib/rewrites.php and move everything from lib/htaccess.php
except the H5BP htaccess functionality into it

- In the config, change add_theme_support('rewrite-urls') to
add_theme_support('rewrites')

- Remove the Apache/LightSpeed HTTPD check for rewrites

- Update docs with better Nginx rewrite rules
config.php organization
Introduce add_theme_support('bootstrap-gallery')

Only apply the Roots [gallery] shortcode if enabled in config.php
Remove conditional feed in head.php

Since most sites will have a blog, simply remove the feed link if
you don't want to include it.
Updated Macedonian translation (thx @maced0n)
Update Korean Translation
JavaScript clean up

- Modernizr is now enqueued and included after stylesheets

- jQuery is no longer hardcoded since WP now supports protocol-relative
URLs

- jQuery fallback output is handled by a new function in lib/scripts.php
(the method is still the same one from HTML5 Boilerplate)
Merge pull request #668 from redfrost/master

Update Korean translation
Update comment about jQuery
Allow get_search_form() to be called more than once per request
Change JS ordering

- Load jQuery before Modernizr so that the fallback method will
always be applied immediately after jQuery. If a script is
enqueued in the footer after jQuery, then the fallback shows up
in the footer. Modernizr will always be in the head so this
issue won't occur.

- Move plugins.js and main.js to footer

jQuery is still kept in the head to avoid conflicts with plugins
Merge pull request #672 from tomdxw/fix-search-form-bug

Allow get_search_form() to be called more than once per request
Merge remote-tracking branch 'upstream/master'