Add package tasks for web assets
Add settings for publishing packaged assets (disabled by default)
Add support for publishing assets as webjar
Merge pull request #78 from pvlugter/package

Add package and publish support
Fix packaging for empty package prefix
Merge pull request #79 from pvlugter/package-prefix

Fix packaging for empty package prefix
Add multi-module support

Support asset dependencies for project and configuration dependencies.
Exported asset directories can be enabled or disabled with exportAssets setting.
Automatic deduplication for duplicate directories or identical files (contents hash).