Milestone Trac 0.11

Implement Trac 0.11 on dev.haiku-os.org.

The following things are going to be included automatically:

• ticket tracker
  • improved query system
  • simplified ticket monitoring (​teo:ticket:1459 on Trac project site)

The following needs our own implementations:

• ticket tracker
  • ticket dependencies (​teo:ticket:31 and ​teo:wiki:TracCrossReferences on Trac project site)
• source browser
  • integrate the subversion repository in trac