Updated prism-c.js for enhanced C macro support

Previously, #include <stdio.h> resulted in the < and > being tagged as operators, which is confusing. Also, preprocessor directives are not allowed to have spaces after the # and before the directive (#include, #define, #if, etc.), so I updated the regex to ignore improperly formatted macros. Currently, macro arguments will be highlighted as properties, but you can line 11 to whatever flagging is desired (keyword, for instance) to visually distinguish between the macro and its arguments.
Merge pull request #204 from augustjd/patch-1

Updated prism-c.js for enhanced C macro support
Included another tutorial on Prism

Includes the ability to show language name
Merge pull request #205 from japborst/gh-pages

Included another tutorial on Prism
Fix incompatibility between CSS extras & the WPD plugin
Merge pull request #210 from apfelbox/wpd-cssextras-issue

Fix incompatibility between CSS extras & the WPD plugin
Updating MDN logo on homepage
Merge pull request #213 from darkwing/update-mdn-logo

Updating MDN logo on homepage
Autolinker fixes
Capture query string and document fragment in url regex
If inserting to attr-value, need to match url-link first, otherwise query string '=' gets picked up as punctuation.
Don't prepend mailto: if it's already there (e.g. inside an href)
Merge pull request #214 from nauzilus/autolinker-fixes

Fix Issue #163 Autolinker plugin incorrectly ignores URL fragment identifiers
added NSIS syntax
added credits
Update prism-nsis.js
Update prism-nsis.js
Update prism-nsis.min.js
Added get/set to JS keywords
Debounce multiple rapid generateCode requests.
Changing compression level or on page load causes a large amount of generate code requests as each source file is loaded. Because there's no guarantee the order that these requests will start-and more importantly, end-the generated code can contain undefined code snippets.
Merge pull request #219 from nauzilus/downloader-fix

Debounce multiple rapid generateCode calls.
Adding CSS-Tricks logo

by Lea's generous request at https://twitter.com/LeaVerou/status/441696454303027201
Merge pull request #226 from chriscoyier/gh-pages

Adding CSS-Tricks logo