issue 306, 307, 308, 309: Finished testing for basic client-side
experiment creation validation.  Currently client-side highlighting of
required fields is done as a side-effect of the methods that check
whether or not the field is satisfactorily filled out.  This is not the
most satisfactory set-up and thus will be re-factored when the entirety
of experiment creation is refactored.

issue 306, 307, 308, 309: Fixed merge conflicts from
origin/experimentValidation (gitHub)


AUTO-GENERATED MESSAGE:

Merge branch 'experimentValidation' of https://github.com/google/paco
into experimentValidation

Conflicts:
	Paco-Server/src/com/google/sampling/experiential/client/ExperimentDefinitionPanel.java
	Paco-Server/src/com/google/sampling/experiential/client/InputsPanel.java
	Paco-Server/tests/com/google/sampling/experiential/client/AllTests.java
	Paco-Server/tests/com/google/sampling/experiential/client/ExperimentCreationValidationTest.java