Gatherer 2.2.2 mod.
The addon does not track like a tracking ability does, rather it 'remembers' where you have found various items in the past. It does this whenever you gather (perform herbalism, mining or opening) on an item, and records the specific map location in it's history. From then on, whenever the item comes into range of being one of the closest 1-25 (configurable) items to your present location, it will pop up on you minimap.
2.1.1 (#1700, fix only release):
Dark Iron recorded as Iron (english version) and not recorded (french version) now records (Note that english users will have to use the node editor to correct the icon type for already recorded dark iron).
Init based on ADDON_LOADED instead of VARIABLE_LOADED
Modified init for UNIT_NAME_UPDATE to work along with VARIABLES_LOADED to allow proper initialization when changing character without exiting the game.
French localisation, all 'veine' were translated to 'filon', this has been included in the fix item facility of the Zone Rematch.
minor display and parameter parsing fix for /gather loginfo command
Backdrop color for option dialog reverted to black (1.7 wow patch inverted colors for backdrop frame functions).
Added divide by zero check and default value in report and search routines for % calculations.
Minor fix to Gathering event well no skill (or too low skill) is used so that the item count isn't increase (or set to 0 for a new node).
Upgraded transition matrixes number to 1.7 for German and French (identity matrix, zone order did not change between 1.6 and 1.7).
Added extra check for changing maps.
error on load fixed (False instead of Hide in widget call).
error opening report dialog in specific place fixed (Onyxia lair, etc.), change base dialog placement so the handle should be grabbable to move the dialog where you want it.
added warning and ignore for invalid continent/zone in database in Search UI code (ie. = 0).
box icon changed to the same one as Crates (previously using the Chest one).
new icon for rich thorium veins (courtesy of ksmith22).
changed icon for Blood of Heroes to correct one.
small correction for required skill level values in GatherIcons.lua for Dark Iron and Rich Thorium veins
small fixes in german localization
polling the skill tree for existing Gather skill on the character will trigger only at startup and upon learning new skills (tree skill state will be conserved too, contrary to old behaviour which opened everything every 5 seconds)
Configuration Dialog and Zone match dialog movable (new UI dialogs are movable too).
Filters in the world map screen reworked in a single dropdown menu.
Option dialog reorganized to use tabs (Filters, Globals, Quick Menu).
Reorganized content of UI_localization.lua so that it's easier to fill in, texts and tips regrouped by dialog.
Upgraded myAddons support up to version 2.0 standard (along with help pages for english, french and chinese).
added small delay to display/hide notes on world map (50 ms every 100 notes).
redistributed world map buttons in subframes of the GathererOverlayFrame (rougthly 100 per subframe).
updated #interface number for 1.7.0 WoW Patch
New to 2.1.0:
report by zone (new UI, access through command line, binding, button on config dialog, button in quickmenu).
search utility (new UI, access through command line, binding, button on config dialog, button in quickmenu).
Ingame edit utility for nodes (delete, toggle bugged, change icon, type, gather name) with selectable scope at node, zone, continent or world level for propagation of the change, alt right click on a node on the world map to display the dialog.
added world map icon alpha setting selector in config dialog.
added option to have an alpha value for mininotes under the minimum icon distance (100% by default).
added binding for option, report, search dialogs.
added dark iron to gatherable items (for WoW 1.7.0, icon courtesy of ksmith22, possibly missing french text).
added shellfish trap item.
support for Chinese WoW added (thanks goes to biAji for localization).