bug-fixes: addressing adjudication bugs

- fix mantis issue 0000599
- enforce consistent use of is_null, use current()
- style fixes where required
bug-fix: submit button disable/enable logic

- account for having empty entries properly
bug-fix: ranked word adjudicate
bug-fix: fix ranked word adjudication

- there was no way to add intrusion entries where
one progenitor had an entry but the other did not: use
a rank paradigm to figure out the intrusion submission
bug-fix: final adjudication fixes

- add a readonly checkbox for classification and
alpha numeric test adjudications to allow empty entries
when both typists have words but the correct option is
to pass nothing (ie., words were trancribed past the test time limit)
bug-fix: fix transcription errors

- enforce consistency in style, doc, use of php functions with develop branch
- fix template errors
final round of bug fixes

- test entry ranked word transcription was broken
due to some simplifications carried over from current development
- found a few more minor html issues
Merge remote branch 'origin/release' into develop

Conflicts:
	api/database/test.class.php
	api/database/test_entry.class.php
	api/database/test_entry_alpha_numeric.class.php
	api/database/test_entry_classification.class.php
	api/database/test_entry_confirmation.class.php
	api/database/test_entry_ranked_word.class.php
	api/ui/push/test_entry_alpha_numeric_edit.class.php
	api/ui/push/test_entry_classification_edit.class.php
	api/ui/push/test_entry_new.class.php
	api/ui/push/test_entry_ranked_word_edit.class.php
	api/ui/widget/assignment_list.class.php
	api/ui/widget/ranked_word_set_add.class.php
	api/ui/widget/ranked_word_set_view.class.php
	api/ui/widget/test_entry_alpha_numeric_adjudicate.class.php
	api/ui/widget/test_entry_classification_adjudicate.class.php
	api/ui/widget/test_entry_ranked_word_adjudicate.class.php
	api/ui/widget/test_list.class.php
	tpl/test_entry_alpha_numeric_adjudicate.twig
	tpl/test_entry_classification_adjudicate.twig
	tpl/test_entry_classification_transcribe.twig
	tpl/test_entry_ranked_word_adjudicate.twig
	tpl/test_entry_ranked_word_transcribe.twig