Update Floater World Map, add support for worldmap and maptrackavatar slurls (Find on map and show pick on map in web profiles)

Cleaned up includes, switched callbacks over to mCommitCallbackRegistrar, updated RLVa portions to RLVa 1.4.5, changed mSLURL from a string to a real SLURL
Add AICurlTimer - timer support for the curl thread.

Not used yet. Deliberately not threadsafe.
Usage the same as AIFrameTimer, upon which is was based.
Set CURLOPT_FORBID_REUSE for XMLRPCResponder

XMLRPCResponder is used to login, which is a HTTP 1.0 server
that doesn't support reuse of connections.
It's cleaner to close connections from our side too.

This changes,
0x7fffdcf93700   CURLIO      0x7fffcd86db40   * Connection #0 to host login.agni.lindenlab.com left intact
into
0x7fffdcf93700   CURLIO      0x7fffcd8b0bd0   * Closing connection #0
Optional V3 Web Search and support for search SLURLs

Added "Use web-based search instead of legacy v1 search" checkbox to System->General preferences

Unified all functions to display search floater into toggle_search_floater and LLFloaterSearch::showInstance
Added UseWebSearch and UseWebSearchSLURL debug settings for flexible configurations
- SLURLs with legacy search cannot always present the same results as web
Added SearchURL debug setting, a separate setting from the one used in the all tab, slightly different and always set by response["search"] on OSGrid logins to detect if websearch is supported
Cleaned up llfloaterdirectory includes and added "Search.WebFloater" to the CommitCallbackRegistrar in case we ever want to add a button or something to open web search (couldn't find a nice place for it, sadly), also added more functions to show specific tabs and performQueryOn to search a tab with specific query on LLPanelDirBrowser's
Fix Issue 630: Appareance to XMl don't work

Removes the enable callback for Appearance To XML, LL no longer has that hooked in, why should we?
Tested and confirmed to work with or without DebugAvatarAppearanceMessage the same way.
Fix Issue 706: 4000Alpha terrain downloads fail
Added progress meter in HTTP debug console.
Merge remote-tracking branch 'singu/master'
Fix two bugs for web search

1. When web search was open, because it had no id, it would steal the links clicked for the in-viewer browser, now it identifies as search and will not.
2. Work around an oddity with the browser being unresponsive to certain category only slurls, by temporarily removing the expected behavior of it returning as last seen when reopened (no setVisible(false) in onClose, just close out as normal)
Merge branch 'master' of https://github.com/singularity-viewer/SingularityViewer
Solve Issue 907: Build -> Objecttexture -> Searchfield-activation
Update/cleanup llpanelpermissions
Feature Request: Web Search Tab in Legacy Search!
Whoops, source code shouldn't be executable.
Increase connect timeouts for capabilities that demand short transfer times.

The automatic adjustment sets the connect time to 3 seconds, which might
be a bit on the short side sometimes.

Also remove the HACK and use CurlTimeoutConnect again.
The default is still 10 seconds, but is overridden to be 30 for mesh
now (which needs a reconnect for every mesh, since LL does not support
connection reuse for mesh). Note that I never saw any successful
connect under 8 seconds while I had the connect time out at 30:
Over 8 seconds is a sure fail (except for mesh, where in rare cases
there were connect times of 15 seconds (never 14 or 16).

On quiet servers, the connect time is normally sub-second. This is
the bulk of connections for my own SL use.
CURLIO (and libcwd): add number of established connections to http console.

I need to parse the debug output of libcurl for this, and choose
to not do that for a Release build - at which point it makes little
sense to even do it for a Debug build, since also the Alpha release
are 'Release'. Even though it would probably have no impact on FPS,
there would be like two persons looking at that number and understanding
it.
Avoid running the motionblur shader if there hasn't been camera movement. Also clamp per-frame fragment velocity to reduce visual artifacts.
When requesting an avatar reload, also reload all attachments (prior to this it was not possible to actually reload attachments on non-agent avatars)
added LLProgressView::abortShowProgress. Issue upon failed login to terminate pending loginpanel destruction which was killing the actual 'new' replacement loginpanel instead of the old to-be-deleted version.
Use SHGetKnownFolderPath on vista/win7/win8, instead of deprecated SHGetSpecialFolderPath.