Allow user to specify path of extracted closure-library <HOME> folder

[lukas-vlcek]

The goal would be to allow users to keep whole closure-library sources as part of the project resources (like in vendor folder) and have it used by CJF maven testing plugin instead of built-in closure-library.

I do always keep extracted copy of closure-library as a part of the project for two reasons:

• I implement some tests that can be run manually (by opening single HTML file) and for this I need the library sources in extracted form (these tests are also run as a part of CJF tests via maven test plugin support but it is faster if I can run individual test manually without all the maven ceremony)
• I often look into the library sources (and my IDE allows me to quickly navigate into it)

This will also allow users to use different version of closure-library than the one provided by the CJF (there is no official maven friendly packaging anyway). This will however require user to make sure the closure-library sources are complete and valid.

WDYT? @jlgrock

[lukas-vlcek]

Possibly related issue: https://github.com/jlgrock/ClosureJavascriptFramework/issues/11

[jlgrock]

I love the idea, I just don't know how best to do it. What do you think? Just point it to a directory and then copy the files over? It has to be copied over because the framework needs it for the relative pathing.

[lukas-vlcek]

I did not have a chance to check the code yet. Will look at it and get back.