Merge pull request #8 from rpaskin/master

Changing error messages to STDERR
bump version
Added support for ms in addition to mil
Merge pull request #10 from rpaskin/add-ms

Added support for ms in addition to mil
remove mil option (replaced by more sensible ms option)
version bump
Line error should include the line # (index) for easier resolving.

Current line error returns string including line object.

example:
 `"#<SRT::Line:0x007fa5ac8ddf70>, Invalid Time Line formatting, [de vivir en granjas,</i>\r]"`

To make resolving the error easier, it should return the line index:
 `"842, Invalid Time Line formatting, [de vivir en granjas,</i>\r]"`
Merge pull request #11 from jeffvincent/master

Line error should include the line num (i.e. index) for easier resolving.
Version bump
Adding coveralls
Added the spec helper and update the README with some badages
bump
Problem with coverage report so I removed the badge