mxp: Build a full application zip

[kiesel]

XP applications should be packageable "as a whole", with all dependencies included, doc_root/, etc/, conf/ and xsl/ folders - potentially even more.

Possibly this is also possible w/ other maven plugins (eg. assembly plugin)?

[kiesel]

What this should do is this:

• create a zip/tar.gz/... with the following structure:

${artifactId}/
 |- lib/
 |  |- *.xar (all .xar dependencies required for default scope)
 |  |- core (xp framework xars)
 |     `- tools (**/*.php - class.php, web.php, xar.php)
 |- etc/
 |  `- **/*
 |- doc_root/
 |   `- **/*
 |- conf/
 |   `- **/*
 `- project.pth (generated .pth file)

• possibly the archive's root directory needs to be configurable
• project.pth should be generated from the build
• the XP Framework "core" or base probably needs to be treated special

Btw, I am not saying this needs to be implemented in this plugin - we should check if some other maven plugins would be capable of at least parts of this.