Land Management: Add latest NetLogo code
Land Management: allow earth to erode out of model

[#67109678]
Land Management: add isTopsoil property

[#67110390]

also cleans up depth calculation
Land Manaagement: grow based on topsoil thickness

[#67110390]
Add Brunch plugins

[#69018126]
Land Mgmt: symlink node_modules (Brunch plugins)

[#69018126]
Land Mgmt: add dependencies via Bower

[#69018126]
Land Mgmt: Symlink vendored Agentscript, grapher

[#69018126]
Land Mgmt: reorg to prep for Brunch

[#69018126]

Note: won't run in current state. This commit is just here to keep changes to pure renames. Next commit will modify contents of files and add files to get Brunch building working.
Land Mgmt: Build with Brunch

[#69018126]

use 'brunch build' in land-management/ to build the master model to land-management/public/
Allow public/ to be a repo with gh-pages branch

[#69018126]
Land Mgmt: rm unused properties (sky|land)Patches

Not only are they not used, but @skyPatches wasn't being updated when patches were changed to sky during erosion.
Land Mgmt: Track topsoil status of eroded patch

[#67109678]
Land Mgmt: don't regenerate topsoil

[#67109678]
[#67110390]

Also makes subsoil slower to erode than topsoil
Fix apparent assignment-vs-comparison bug
Land Mgmt: Plant growth should be exponential

[#67110390]
Land Mgmt: test of "topsoil count" erosion display

[#68668532]
Land Mgmt: Change mgmt plan w/o resetting model

[#69205788]
Merge branch 'master' into topsoil-count-graph
Land Mgmt: allow planting after 1st of year

[#69205788]