Fix #92
Error format
Repalce e.code + e.syscall by e.message that is supposed to be defined in the error object
Merge branch 'unstable' into logger
Change few log lines
Merge pull request #95 from telefonicaid/logger

Logger. Improve log messages ("undefined(undefined)")
remove "./" as default dir prefix. Fix #93
Merge pull request #96 from telefonicaid/dir_prefix_93

remove "./" as default dir prefix. Fix #93
Fix #97. Do not parse data if there is an error
Merge pull request #98 from telefonicaid/parse_undefined_97

Fix #97. Do not parse data if there is an error
Indentation
Fix #77
Merge pull request #99 from telefonicaid/empty_module

Fix #77
Close #100. Remove OK=true property from Relayed requests

"As 200 HTTP status code means OK, then that element is not really necessary. Only id is useful"
Merge pull request #107 from telefonicaid/unica_api_100

Close #100. Remove ok:true in listener response
Fix #97. Do not parse data if there is an error (2)
Minor bugfix
Merge pull request #108 from telefonicaid/parse_undefined_97

Fix #97. Do not parse data if there is an error (2)
Close #101. Add 'Location' header with response/id
Remove console.log(request)