Builds page: fix broken link to logfile
Coding Guidelines reference is the Wiki

We had 2 diverging sources for coding conventions: the guidelines.php
page on mantisbt.org and the wiki coding_guidelines page.

Information in both sources have been consolidated in the wiki page, and
the web page is now obsolete.
Duh
Redirection page for guidelines.php
Nightly builds page: fix broken link to changesets
Removed footer.
Nightly builds page: add time zone info
Add link to plugins github organization to development page.
Fix broken link to developers manual on development page.
Fix another broken link to developers manual on development page.
Merge branch 'master' of github.com:mantisbt/mantisbt-web
Added demo page.
Remove general_development.php in favor of developer's manual.
Updated MantisTouch screenshots.
Remove unused images.
Remove user directory and replace contact us page with zopim leave-a-message form.
Remove utils_inc.php since it was no longer being used.
Removed about page since it wasn't being referenced.  Same contents are in the manual.
Remove google79352de51ab4694a.html which I beleive was added as a proof of ownership file for Google Analytics.
Fixes #16782: First access to mantisbt.org is slow.