Release v0.4.0
[#71] New integration tests in remote DAS
[#64] Feature - add TraverseEngine
[#97] Add get_incoming_link on the Das Api
[#44] Enhancement - refactor makefile
[#69] Enhancement - refactor integration tests
[#82] Basic code for an integration test - still missing actual queries
[#76] Remove pipe notation in type hint
[#63 #66 #67 #70] Enhancement - apply improvements
* Remove unused Enums
* Remove unused exceptions
* Move engines to a new file
* Return exception in get_atom, get_node and get_link
* Adjustments to API documentation
* Add log to Functions remote connection
[#48] Improvement - update README
[#52] Feature - refactory in DistributedAtomSpace to forward API to QueryEngine and AtomDB
[HOTFIX] Quick fix for bug reported in #6
[#54] Feature - implements conjunction of multiples sub-expressions in DAS query() method