Sprint goals

• Prepare 0.5.0 for rc #817
  • Update dependencies #810
  • Fix account eligibility status #812
  • Transaction support MySQL layer #772
  • Documentation update (API) #803
  • Reduce number of message about the missing API key #807
  • Eliminate database warnings #651
  • Retrieval of recent news from the DB #831
  • Fix response format #823
  • Incorrect error reporting for dynamic fees #815
  • Remove the job findMissingBlocks #805
  • Tag release candidate version (rc.0) #835
  • Update domain lisk.io to lisk.com #794
• Implement multisignature pooling service #44
  • Retrieve multisignature transaction by ID (GET) #165
  • Retrieve multisignature transaction by account (GET) #166
    Moved goals
  • Add signature to multisignature transaction #161
  • Create API endpoint for multisignature transaction initiation (POST) #162
  • Create API endpoint for multisignature transaction update (PATCH) #163