The crash was caused by erroneous getting of month name from vector with week day names in LLStringUtil::formatDatetime().
This code woth introduced in June, so though it didn't work properly, it didn't cause the crash(cause June is 5th month). But when
number of current month exceeded number of days in week(this happened in August cause it is 8th) code started getting 8th element from
vector with 7. This caused the crash. It reproduced only on Japanese locale because only there code that caused it was used(see STORM-177
for details). This changeset seems to fix STORM-177 too.

- Used vector with months names where it should be.

STORM-186 FIXED The "Take Off - Remove from current outfit" option of the My Outfits gear menu now ignores item selection, taking aff all wearables.

STORM-183 FIXED The "Replace Current Outfit" option of the My Outfits gear menu (which is only applicable to outfits) wasn't disabled for selected wearables.

Changed some of context menu actions availability checks to be applied to all selected items instead of only the last one.

Made sure that a tab can only be highlighted when sidebar is expanended.

The accordion was reset whenever the panel visibility was changed.
Now that's done only when the panel gets (re-)initialized with a place info.

The 'Item Profile' panel was observing changes in agent's inventory only, so when an item inside an object was renamed its name wasn't updated in 'Item Profile' panel.

Reason: when you detach the bottommost sidebar tab, the fake open/close tab gets selected, which is invisible.
Fix: select a normal, visible tab.

This problem reproduced not only on minimize of certain floaters from description, but for all expandable textboxes after resizes.
It happened because of hideExpandText() call in LLTextBoxEx::reshape() that broke lineendings.

- Removed it from there so text expands now only when clicking "More" link- it's the only time when it should be shown, and
also doesn't have problem with breaking anything because of calling setTextBase() after it.

Vertical scroll bar appears when reduced panel height becomes insufficient for displaying all controls.

STORM-101 FIXED Moved floater settings (rect, visibility, docked state) to account-specific XML file.

The settings are now stored to settings_per_account.xml.
This change affects all floaters having save_rect/save_visibility/save_dock_state params set to "true",
not just detached sidebar tabs as the ticket requests.

- Added argument show_images to constructors of LLIMToastNotifyPanel and LLToastNotifyPanel. Depending on it plaintext attribute for textbox with notification text is set. Used this argument when adding notification to chat history if IM is in plaintext mode.