refactor(API): Move org.loadui.testfx.{robots,service,utils} to org.testfx.{robot,service,util}.
refactor(Service): Replace NoNodes{Found,Visible}Exception with NodeFinderException.
style: Optimize imports.
refactor(Legacy): Cleanup imports, move classes where they belong and disable failing find() tests.
chore(API): Add @Beta annotation.
style(Service): Reformat code.
test(Legacy): Re-enable ignored integration tests.
feat(Service): Add ErrorType to NodeFinderException.
refactor(Legacy): Throw node errors as NodeQueryException.
Merge pull request #172 from hastebrot/refactor-testfx-package

refactor(API): Move some org.loadui.testfx classes to org.testfx.