support dollar sign in inline dialects

In this way it is possible to use the dollar ($) sign as a startpoint for an inline dialect.
Fix "remotes images" typo
refactors site map
migration script
add a tombstone for extra safety
Also added the caret symbol, for completeness. In this way all ascii symbols are allowed.
fix exception in logs
memory profiling script
URGENT: blank string in auto close time was causing stuff to blow up - non mods could not create topics
NO_QUNIT=1 disables qunit in autospec
Add specs for topic create with auto_close_time. Just ignore auto_close_time from users who are not authorized to use it instead of raising an error.
On mobile, keep topic map collapsed by default. Also, when collapsed don't show as many
data turds.
add classic google maps onebox
Different Slack ratio on Touch devices, show loading indicator
Uncomment the loading logic :)
Merge pull request #1701 from velesin/sitemap_refactoring

refactors site map
Merge pull request #1700 from jamiew/en-typo

Fix "remotes images" typo
Merge pull request #1692 from kasperpeulen/dollarfix

Allow dollar sign for inline dialects
Add base_url to link in pending_users_reminder email
Put that autoclose regexp back. Firefox, take it easy.