(Redmine issue: #7041)

(Redmine issue: #7041)

The makefile target 'develop' now pre-builds web interface artifacts. There is a new example configuration file for Apache2 that demonstrates the necessary configuration for Git installations. There is a custom WSGI script file for easier web interface installation from Git. (Redmine issue: #4216)

(Redmine issue: #4800)

Currently only built-in Flask commands run, shell, etc. are available. It can be used to launch development web server, which is now documented in development documentation page. (Redmine issue: #4216)

This commit represents huge amount of work and introduces new Python-based version of Hawat web user interface for Mentat system. It is built on top of the great Flask framework. Currently it is still work in progress and many features are implemented only as dummy stubs, however the core functionality is almost finished. Following is a list of current key features:

  * Focus on modular architecture using Flask`s blueprint feature.
  * Multi-layered configurability (defaults, multiple file overrides).
  * Plugin system.
  * Internationalization support.
  * Support for multiple authentication systems.

This commit provides working albeit hollow starting point for future web interface development. IT IS NOT READY FOR PRODUCTION USAGE!!!

(Redmine issue: #3734,#3361)