STORM-666 FIXED Menu spawned by the overflow button had invalid position in Place Profile and Avatar Profile panels.

Changes:
* Changed the button class from LLButton to LLMenuButton to avoid duplicating menu positioning logic.
* Enabled LLMenuButton to support aligning menu to the top right corner of the button.

back-out the back-out for this branch.  yay.

Backing out this merge that I pushed (prematurely) to the wrong place.

reviewed by Leyla

Fixed bug EXT-6842 ([I18N] Date format in Profile - mm/dd/yyyy needs to be: yyyy/mm/dd for Japanese).

- Made avatar registration date localizeable.
- Specified localization templates for English, Japanese and German.

Reviewed by Mike: https://jira.secondlife.com/browse/EXT-6842

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branch : product-engine

Done normal task EXT-6267 ([TRUNCATION] [EN XUI REWORK] - Side panel, profiles: the teleport button is truncated. need 'en' xui designer rework)
 * moved Map Button into the dropdown menu (with enable/click logic). New <menu_item_call label="Map" name="show_on_map"> is added into the menu_profile_overflow.xml
 * redesigned rest of buttons to accommodate available space

Now buttons' widths are enough to not truncate labels in all locales.
NOTE: New "Map" item menu should be localized (just move values from panel_profile.xml to menu_profile_overflow.xml) in other locales.

Reviewed by Vadim at https://codereview.productengine.com/secondlife/r/59/

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branch : product-engine

Fixed low priority bug EXT-5653 (View Profile: Hand-pointer is shown when hovering mouse above homepage that isn't a valid URL).
Removed an unnecessary on-click callback (that caused the cursor change) from the textbox.

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No ticket. Replaced calls of LLVoiceClient::getInstance() to LLVoiceClient::instanceExists() in checks before
removal of voice client status observers. These checks were introduced in changeset bc6a6ab2ce54.

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branch : product-engine

EXT-3620 Unable to locate other avatars in God mode on map via "map" button (previously "show on map")

Fixed low bug EXT-5069 (Bad user experience while blocking avatar from view profile panel). Replaced using of menu_item_check with menu_item_call

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branch : product-engine

Fixed critical bug EXT-4947 (Viewer crashes after 'See my online status' check-box was checked for deleted from friends avatar)
 - added updating of allowed rights when friendship is terminated/started to disable/enable checkboxes
 - also added validation of avatar's relationship before committing and log a warning if it is absent.

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branch : product-engine

Also eliminated notification "ObjectGiveItemUnknownUser" because the
SLURL-based name lookup will always retrieve the user name.
Fixed a bug with ObjectGiveItem where the SLURL would be incorrect
for a group.

Added a "Block/Unblock" item to the profile view panel overflow menu to make the menu more visible.

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Fixed normal bug EXT-4734 - In profile side-panels, area for homepage URL appears clickable without URL.

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branch : product-engine

-- removed logic to process online status (LLPanelAvatarProfile::fillOnlineStatus) for non-existent view (name="online_status") on profile page

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(Should not be able to start a call when voice is disabled). Call buttons state now reacts on
voice changes in time.

- Added voiceWorking() method to LLVoiceClient to determine real availability of voice, because voiceEnabled()
doesn't take into account possible errors. Perhaps there is no need in two methods- some investigation will be
made and depending on its results they may become one non-static method. voiceWorking() uses state of voice
client(mState) to determine voice availability. Also some states which are not currently counted by voiceWorking()
as valid may be added if testing reveals problems.

- To enable/disable call buttons in time, LLVoiceClientStatusObserver is used. Its trigger uses states from its
enum only to skip updating button in some states(to avoid button blinking), but to determine button state
LLVoiceClient's voiceWorking() is used.

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branch : product-engine

Fixed major bug EXT-4121 ([BSI] Partner display is blank for residents on your friends list, on the first lookup after login)

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fixed EXT-3838 “[BSI] Resident profile tries to link "(none)" when Resident isn't member of any groups”,
avoided translating null group id as SLURL;

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- Fixed not only "Teleport" button from profile, but also from IM (according to comment in JIRA).

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all set for non-friend”,
added checkboxes cleanup on panel update;

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branch : product-engine

EXT-2635 	 No message reminding user that a restart is required to reset cache (was Clear Cache)
reviewed by Richard

Fixed low bug EXT - 3255 (Call button is enabled in the People & Profile panels while voice is disabled)

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branch : product-engine

Fixed low bug EXT - 3255 (Call button is enabled in the People & Profile panels while voice is disabled)

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