v0.0.4

v0.0.4 (2019-01-23)

• chore: travis CI build all platforms binary (b58e86d)
• feat: optimize get online representatives (e069b9d)
• fix: high cpu loading (4fc01cf)
• fix: synchronization problems caused by sorting frontier incorrectly (07bece7)
• feat: print rpc request message (#89) (38bc3d2), closes #89