Change semantics of -w and -c flags

[helpermethod]

Changes introduced with these commits

• the -w and -c flags are now inclusive, i.e.

  -w 1
  

  will complain as soon as the number of warnings will be equal to 1 or higher

• a TIMEOUT environment variable has been introduced which enables debugging the application without timing out after 10 secs

[r41d]

Thank you for the pull request, I appreciate the new features :)
However, this project was developed with tab indentation and your commit (954a093) changes almost every single line because it changes the indentation style to spaces.
Under these circumstances I would rather not merge the pull request, as it would give us a lot of line changes which aren't really changes.
Could you possibly submit a tab indented version?

[helpermethod]

See #15