update for otp r17

Merge pull request esl#27 from legoscia/url-query-without-path

Handle URLs where the query part follows the hostname without a slash in between

handle {ok,{http_error,_}} return

Merge pull request esl#19 from alk/master

Handling url-encoded credentials in http urls

Merge pull request esl#18 from fdmanana/master

Consistent error reporting when using get_body_part/1,2

Merge pull request esl#18 from fdmanana/master

Consistent error reporting when using get_body_part/1,2

Merge pull request esl#18 from fdmanana/master

Consistent error reporting when using get_body_part/1,2

maintenance