Merge branch 'release/0.6.0' into develop
divide the one test function into some functions to avoid timeout for low spec machine env
make error msgs understandable
fix bug that parse errors can occur in case of including CRLF|LF in a header block
fix a bug that leo_rpc:nb_yield I/F was wrong
fix a bug that invalid ets records may have been existing(should be removed)
fix rebar.config to use the latest develop branch
handle errors properly when protocol errors occured
handle large receive data which size exceeds the size of one request
leo_pod:checkin to be invoked in any cases
retry leo_pod:checkout to be more stable
impl max request per one session
increase # of max req per one session
change data type from queue() to pid()
fix initialize timing to pid_from
only logging(don't raise exception) when there is no client to respond
make recv timeout greater one(to be mutable corresponding with handling file size)
Upgrade leo_pod
Refactor
Add leo_rpc:cast/4