CreateDeliveryCommit updated to add timestamp in tag

- created delivery and deploy tag now contains timestamp
DEPLOY and DELIVERY commit on svf.unionsoft.sk

[DELIVERED #80368768]
[DELIVERED #80448682]
[DELIVERED #80451040]
[DELIVERED #80626930]
[DELIVERED #80730506]
Temp fix of sass gem version

- version 3.4.6 causes failure of sass compilation on travis
- downgrading to 3.4.0 for travis
- this bug should be removed after versions settle down
DEPLOY and DELIVERY commit on demo01.test.unionsoft.sk
Support for api documentation generation

- yuidoc integrated
- grunt updated, use grunt doc
- some sources updated to contain example documentation
[FINISHED #80361128] Fees Summary for last 365 days.
-requires statistics and fee schema update.
EventRegistry&EventScheduler
- transfers refactored
- requires modified schemas.
[FINISHED #81093652] EventProcessor StandAlone
[FINISHED #81171756] Payments import.
features:
 - data type number
 - @timestamp

requires:
- new schemas
- folder for upload