CI: Install customized project

Avoid caching problem on Travis CI.

DO NOT MERGE

CI: Install customized project

Avoid caching problem on Travis CI.

DO NOT MERGE

CI: Install customized project

Avoid caching problem on Travis CI.

DO NOT MERGE

Bump dcurl dependency to 0.5.0

DO NOT MERGE

perf: Parallelize GTTA API again

DO NOT MERGE

With new network refacotring in v1.8.0, the queue problem seems resolve.
So we roll back implementaion of parallel gTTA again.

Bump RocksDB dependency to 5.18.3

DO NOT MERGE

Bump RocksDB dependency to 5.18.3

DO NOT MERGE

Mainnet Release: v1.2.0

v1.1.4.3

Merge branch 'dev-enhance-SolidLookAhead' into dev