rewrite upgrading
rewrite upgrading
rewrite first para to refer to specific release tags

It's true it's on master, but unwise to use that in production.
Also, it's helpful to link to the releases on github!
Merge remote-tracking branch 'origin/gh-pages-upgrading' into gh-pages-upgrading

Conflicts:
	docs/running/upgrading.md
Move Administrator Privileges to Admin Manual

Administrator Privileges section has nothing to do with installing, so
moved it to the Admin Manual.
add i18n page (from wiki) to dev docs
move release manager note (needs more work)
rewrite bad sentence/spelling
fix broken links
rewrites and fixes
Use template for setting up postgres databases

Seems to be the cleanest way for ensuring databases are always created
with UTF-8 encoding, if for example the admin has not configured the
system locale.
Use alaveteli_ as database prefix rather than foi_

Clearer what app the database belongs to
Merge branch 'gr-gh-pages-develop' into gh-pages
config_files:convert_crontab now allows MAILTO

No longer have to manually edit the crontab as MAILTO can be specified
when generating the file.
Minor example code formatting
add .po glossary entry
Remove unused cron example variable

Not used in config/crontab-example.ugly
Update cron variables documentation
add release/release manager to glossary
Remove superfluous crontab docs