Issue 206 Removed BuildHelper tab completely

Reason: Achieve consistent UI amongst all project pages. Only the OH
project page has this BuildHelper tab.

This commit includes the south migration to delete buildHelper fields
and contains deletions in python files.
Fixed 950 Fixed a tiny typo in maintainer updates popup
simplify installation instructions to do both 'python manage.py syncdb --noinput' and 'python manage.py migrate' in one
changing the style of edit-photo page (removing margins) and fixing overflow
switched "wget" to "curl -O"
Clarified usage instructions for man patch
Merge pull request #225 from mbirdi/bug-948-changed-wget-to-curldashO

switched "wget" to "curl -O"; also fixed CLI instructions about man pages
Changed "more-garlic.patch" to "recipes.patch" in diffpatch High hints
Fixes http://openhatch.org/bugs/issue952 open redirect in logout url.
Updated docs to add a missing word and fix a broken link
Merge pull request #232 from eeshangarg/bug-795-changed-patch-file-name-in-diffpatch

Changed "more-garlic.patch" to "recipes.patch" in diffpatch High hints

Closes: https://openhatch.org/bugs/issue795
Fixed diffpatch hints
Merge pull request #235 from bobsilverberg/doc_fix

Updated docs to add a missing word and fix a broken link
Add info on override local settings in docs

Add some brief information on local settings in the advanced installation
documentation.
Fixes https://openhatch.org/bugs/issue944
Merge pull request #237 from cpallares/localsettings

Add info on override local settings in docs
Merge pull request #234 from mattskone/issue952

Fixes http://openhatch.org/bugs/issue952 open redirect in logout url.
Merge pull request #236 from eeshangarg/bug-812-fixed-diffpatch-hints

Fixed diffpatch hints

Closes: https://openhatch.org/bugs/issue812
Corrected info on IRC devel meetings. Closes issue 797.
Merge pull request #223 from sguile/master

installation doc updates