Upgrade lodash to v4 and lint more files (#8495)

* common: import lodash modules separately

* remove test/content from .eslintignore, fix with eslint --fix content/index

* lint test/content

* lint content/index except for lodash methods

* upgrade server/models

* upgrade server/middlewares and server/libs

* port server/controllers/top-level

* port server/controllers/api-v3

* port views and tests

* client old port lodash and _(, missing _.

* upgrade client-old

* port common/script (root level files only)

* port common/script/fns

* port common/libs

* port common/script/ops

* port common/script/content and common/script/libs/shops.js

* misc fixes

* misc fixes

* misc fixes

* more tests fixes

* fix payments test stubbing, down to 2 failing tests

* remove more instances of lodash wrapping

* fix bug where toObject does not clone object

* fix tests

* upgrade migration or add lodash 4 note

* update shrinkwrap

* fix linting

* upgrade eslint-config-habitrpg

* update shrinkwrap

* recompile shrinkwrap

website/server/libs/cron.js

@@ -397,7 +397,8 @@ export function cron (options = {}) {
 
   // After all is said and done, progress up user's effect on quest, return those values & reset the user's
   let progress = user.party.quest.progress;
-  _progress = _.cloneDeep(progress);
+  _progress = _.cloneDeep(progress.toObject()); // clone the old progress object
+  progress.down = -1300;
   _.merge(progress, {down: 0, up: 0, collectedItems: 0});
 
   // Send notification for changes in HP and MP
@@ -425,9 +426,9 @@ export function cron (options = {}) {
   //   _(user.inbox.messages)
   //     .sortBy('timestamp')
   //     .takeRight(numberOfPMs - maxPMs)
-  //     .each(pm => {
+  //     .forEach(pm => {
   //       delete user.inbox.messages[pm.id];
-  //     }).value();
+  //     })
   //
   //   user.markModified('inbox.messages');
   // }