Merge branch 'release/0.6.0' into develop
Merge branch 'master' into develop
bump DEB packaging version
Fix an incorrect variable in jubapkg.
Port to Maverics.
cleanup proxy code
remove unused get_private_session_pool function
make async_task_loop::startup private
Fix cpplint.
Move error handling code to avoid undefined behavior.
Merge pull request #833 from gwtnb/mavericks

Port to Maverics.
Add a build option for sanitizer.
Merge pull request #836 from jubatus/cleanup-proxy

cleanup proxy code
fix proxy to remove cancelled session, which cannot be reused, from session_pool
Merge pull request #837 from kmaehashi/fix-proxy-session-pool

Remove cancelled session from session_pool
Fix cpplint
Merge pull request #839 from gwtnb/fsanitize

Add a build option for sanitizer.
remove pkg-config binary from DEB package (fix #825)
Merge pull request #844 from jubatus/remove-pkgconfig-from-deb

remove pkg-config binary from DEB package (fix #825)
add timeout for get_model RPC (fix #720)