Implement lastModified in Handler

[SevereOverfl0w]

Is your feature request related to a problem? Please describe.

In Clojure the lastModified time on the URL is used to determine whether to load a file again. If the lastModified time is not specified/null, then it will always reload it. This leads to unexpected behaviour.

Describe the solution you'd like

Implement getLastModified in Handler and convey the modified time of the entries.

Describe alternatives you've considered

None.

I already made this change a long time ago in my clojure-focused build library.

[nsoft]

Fixed your other one regarding main args parsing. If you can supply unit tests (now that I set up proper junit tests, and made easymock available) and a PR, I'd be happy to review.

[nsoft]

cutting 1.1.0 tomorrow unless you can provide a PR soon, LMK

[SevereOverfl0w]

I wouldn't know where to start with this contribution, I'm afraid. I'm not a java programmer and junit is a foreign language to me!

[nsoft]

Ah I see, I had misunderstood since you linked changes to .java files.

Junit is not a language, just a library, dead simple really in most cases. Just make a class in /src/test, add an @Test annotation to a method and use the assertion methods from org.junit.Assert.java when you want to check something. That said, this project has some very weird tests because of the need to test deep class loader stuff like custom classloaders correctly interpreting the folders within META-INF in MR jars. Unfortunately for these types of things, there is no substitute (that I have yet found) for actually running from a jar file that was started with java -jar. There's a bunch of hackery around those tests to make Junit invoke a jar file we built with a separate process for the test and then say something vaguely intelligent if it fails (still not great in truth).

I can look at it, or if you want to make the initial change I can add a test for you. The latter option gets you a little more credit in the version history.

[SevereOverfl0w]

I'm happy for you to take the credit for the change :). The important thing is that the problem is fixed! You'll likely see problems with my hacked up java, anyway.