- add obj_guid in Slot creation
- add option to del key,value in Slots without triggering exception if it does not exist
- duplicate "placeholder" information of account in table and in slot
- set default to KVP value as in GnuCash
- refactor model_core to extract core objects in separate modules
- add creation of currencies from official ISO data and mnemonic
- add a proper GncSession object to wrap the SA session
- fix gnclock table definition (was buggy in postgres)
- add proper conversion between local datetime in API and utc datetime in DB
- add pytz and tzlocal as dependencies
- add example on reporting transactions based on some regex filter (see discussion http://lists.gnucash.org/pipermail/gnucash-user/2014-November/056924.html)
- add jinja2 version of the report