Suppress warning on fwrite() on StringWriter when process dies premat…

…urely

Merge pull request #3 from kamermans/bugfix/null_exit_code

Don't exit loop until an exit code is returned

Code cleanup

Added Travis-CI badge

Added PHP 5.4 requirement and fixed code comment

Updated README/comments

Added WURFL InSight example script

Merge pull request #2 from lucor/master

Fixes warning message setting non-blocking mode on invalid resource

Added passthru streaming example

Improved STDIN support, added examples