Internal func _log_error_and_exit & _request_post

Internal func _log_error_and_exit & _request_post

Adds two internal functions
_log_error_and_exist : prints out 0, 1 or 2 lines of text
                       and then exit with sys.exit(1)

_request_post        : This is a wrapper around request.post
                       Handles three exceptions
                         ConnectionError, MissingSchema, InvalidURL

Change-Id: If8a4d20054d958cbfb3ab651eae037a124420bd3
Signed-off-by: Bengt Thuree <bthuree@linuxfoundation.org>