election committee initialize fetch and store in small batch from eth

v0.1.14

split catching up on start into batches (#87)

vita completed

v0.1.13

add clerk claim and update config (#86)

add votesync

Fix racing in client pool (#83)

* fix racing

Fix GetCandidates API

The reward address and the operator address were empty.

Improvements and new API

1. Improve read response time
2. Add getCandidateByName API
3. Rename rankingService to APIService
4. Delete some unused code
5. Move dumper and bookkeeper to iotex-tools to void circle dependency

Update license

Merge pull request #51 from iotexproject/frank

 Add csvFile flag for bookkeeper

Update Mock Files and Dependencies

Update mock file and dependencies

Provide bookkeeper to manage reward distribution for voters

Fix bugs

1. Delay fetching Ethereum by 12 blocks
2. Add unit tests
3. misc

Improve ethereum sync speed

1. Remove dependency on iotex-core
2. Improve ethereum sync speed with multi-threads
3. Change candidate filter logic

Update Mock Files

Fix the issue in v0.1.2 by updating mock files