fix RPM release version for jubatus-release package
only use logger after logger configuration (fix #873)
fix code style
Fix .travis.yml
Merge pull request #877 from suma/fix-travis

Fix .travis.yml
Merge pull request #875 from jubatus/fix-873

Use logger macros only after configuring logger
only use logger after logger configuration in jubavisor (fix #873)
Merge pull request #878 from jubatus/fix-873-jubavisor

only use logger after logger configuration in jubavisor (fix #873)
add jubadump to RPM/DEB package (fix #856)
fix jubactl -X default value to linear_mixer (fix #872)
Merge pull request #879 from jubatus/pkg-jubadump

add jubadump to RPM/DEB package (fix #856)
add license file to jubadump package (refs #856)
Merge pull request #881 from jubatus/fix-872

fix jubactl -X default value to linear_mixer (fix #872)
bump version
Merge branch 'release/0.6.3'