Fixed broken builds in IntelliJ

To be honest, not even sure how it was building command-line, but now
it's no longer double-including all its funky dependencies.
Merge pull request #102 from dlew/dlew/fix-build

Fixed broken builds in IntelliJ
Added reactive versions of main Activities/Fragments

Includes both built-in versions + support versions.

Minus any sort of weird annotation hacking, this seems to be the "best" method
for creating a version of the base UI component classes that we can hook into.
Added sample Activity demonstrating LifecycleObservable
Add Rx utilities to ReactiveDialog