proxenet v0.3 release, codename Tarot

Changelog:

• Added support for Java and Tcl plugins
• Ruby plugin support is stable
• Removed support Ruby < 2 and Python < 2.5
• Extended interception features:
  • Intercept can be defined by blacklist/whitelist (option -I/-E)
  • SSL intercept can be toggled (option -N)
• Improved SSL interception:
  • Supports its own CA (minica.c/h)
  • Supports client side certificate (with/without passphrase)
• Added Internet Explorer compatibility mode
• The documentation has been fully migrated to docs/ (sync-ed with ReadTheDocs)
• Many code improvements
• Huge load of bugs fixed