upgrade recon to 2.3.5

Auto remote_load recon observer_cli when observer_cli not load on tar…

…get node.

update changelog 1.2.1

fix io rows when escript (zhongwencool#15)

* fix io rows when escript

* use io:rows/0 rather than io:rows/1

* fix depends on cr

* update readme and travis

Merge pull request zhongwencool#8 from zhongwencool/support-escript

Support escript by rebar3 escriptize

Merge pull request zhongwencool#7 from zhongwencool/mix-deps-fixed

Fixed rebar3 can't publish deps to hex by update rebar3 to 3.3.3

update recon to 2.3.2

publish 1.0.7

Merge pull request zhongwencool#3 from zhongwencool/message.queue.rank

support processes ranking by message queue len