Merging the SLURLs Everywhere branch (viewer-2.0.0-slurls-3) into

Viewer 2.0 (viewer-2.0.0-3). This provides support for clickable Urls
in text editors and textboxes, with right-click context menus,
tooltips, and alternate link labels. This includes alert boxes, the
login progress window, local chat and IM interfaces, etc. As well as
context menus for avatars and groups in list widgets. Includes fixes
for the following individual JIRAs:

DEV-8763 VWR-10636: Hyperlinks in alert dialogs should be selectable (clickable)!
DEV-38829 EXT-742: Remove LLLink class
DEV-35459 VWR-14679: SLURLs and teleport Links not parsed properly
DEV-19842 VWR-8773: Closing parenthesis ")" breaks urls
DEV-21577 VWR-9405: In-world SLURLs containing "(" or ")" are not treated as a hyperlink in chat
DEV-37652 SEC-435: Object Chat/IMs are untraceable (VWR-2388) Fix has left flaw
DEV-10353: URLs in chat log terminated incorrectly when newline in chat
DEV-2925: In chat history, use a teleport hyperlink as source name for object IMs
DEV-36192: Need a way to copy Avatar names and Group names
DEV-2926: Allow viewer hyperlinks to have different text than the actual url
DEV-27253: Add easy way to copy URLs from viewer chat
DEV-38274: Make About Second Life window use new Url hyperlinking features
DEV-39076: No url support in Text Editors
DEV-7476 VWR-2172: Add hyperlinks to chat console for easier access
DEV-7475: Add hyperlinks to notecards!
DEV-35375 EXT-128: HTTPS urls aren't loaded in the internal browser by click

Master JIRA issues: DEV-32819, DEV-323820, DEV-7474

Testing performed against QAR-1789

svn merge -r 131623:131889 svn+ssh://svn.lindenlab.com/svn/linden/branches/viewer/viewer-2.0.0-slurl-3
svn merge -r 131978:132515 svn+ssh://svn.lindenlab.com/svn/linden/branches/viewer/viewer-2.0.0-slurl-3