Merge pull request #70 from tomvantilburg/master

Merge from Tom
Merge pull request #71 from tomvantilburg/master

Added ESRI leaflet plugin
Merge pull request #72 from tomvantilburg/master

Made demo obsolete because of new ICM repo
Merge pull request #73 from tomvantilburg/master

Working on alpha check
Merge pull request #74 from tomvantilburg/master

Bugfix
Merge pull request #75 from tomvantilburg/master

Bugfix
Merge pull request #76 from tomvantilburg/master

Alpha peer check functional again
Merge pull request #77 from tomvantilburg/master

Added deltas to sync system
Merge pull request #78 from tomvantilburg/master

Tests and fixes
Update messaging.md
Update messaging.md
Merge pull request #81 from tomvantilburg/master

Some improvements
Merge pull request #83 from tomvantilburg/master

New sync method
Merge pull request #84 from tomvantilburg/master

Added indexeddb shim (for safari)
referentie naar global core uit de websocket gehaald
Update doc

(record).status() now is one of ("clean", "dirty")

to know when a record has been deleted, now is

(record).isDeleted() -> returns a bool (true, false) whether the record has been deleted or not.
API update

added: (record).data('key') returns the value of 'key'
Merge pull request #88 from tomvantilburg/master

Created proper way of extending prototypes
Remove console logs
Merge branch 'master' of https://github.com/Geodan/cow