Release v1.2.6

Full Changelog: v1.2.5...v1.2.6

Release v1.2.5

What's Changed

• Add contents in README by @dongxuny in #4
• Fix golint issues by @dongxuny in #5
• Enrich Makefile by @dongxuny in #6

Full Changelog: v1.2.4...v1.2.5

Release v1.2.4

1. Add UT coverage and fix golint issues
2. Bump up rk-logger version to v1.2.2

Update license related comments in codes

v1.2.3

Update license related comments in codes

Bump up rk-logger version to v1.2.1

v1.2.2

Bump up rk-logger version to v1.2.1

Bump up to stable version of v1.2.0 for all RK series.

Bump up rk-logger to v1.2.0

v1.0.11

Use error.Error() while printing query log instead of type

v1.0.10

Bump up rk-logger version to v1.0.9

v1.0.9

[rk-query] Bump up rk-logger verstion to v1.0.8 from v1.0.7 [commit:d…

v1.0.8

[rk-query] Add utility functions [commit:dongxuny]