Merge pull request #362 from sandriu/master

Refs #248: transform mobile skin into CSS skin
Unify skins. Now templates/*/pageLayout.ihtml are all identical, except for
spacing.
Keep only one copy of pageLayout.ihtml. Remove skin-specific templates, with
the exception of index.ihtml.
Merge the admin/ and flex/ directories (under wwwbase/ and under templates/).
Move static pages to the wiki.
set mode 644 on some template files.
Reorder donation sections. Remove hardcoded year numbers.
Move templates/common/* directly into templates/
Rename displayCommonPageWithSkin() to just display().
Assign suggestHiddenSearchForm to hangman
Merge pull request #364 from teosz/master

Assign suggestHiddenSearchForm to hangman
Refactor banner code.
Split the "minimalist" hint for skins into more meaningful variables.
Change some defaults in dex.conf.sample
Move the FAQ page to the wiki.
Update Nginx config file sample