v0.2.4

upgrade to 0.2.4 [skip ci]

v0.2.3

upgrade to 0.2.3 [skip ci]

v0.2.2

upper case in doc [skip ci]

v0.2.1

refine doc [skip ci]

v0.2.0

add version since for mongo [skip ci]

v0.1.2

refine release notes [skip ci]

v0.1.1

uprade example in read me to new version [skip ci]

v0.1.0

Basic HTTP API and database operations