6230 gf upgrade part deux

[scolapasta]

What this PR does / why we need it:
Fixes issues on template and guestbook pages dealing with editMode

Which issue(s) this PR closes:
Closes #6230

(though we may not want to close #6230 until #6595 testing is complete)

Special notes for your reviewer:
editMode viewparam changed to omnifaces for templates
editMode viewparam removed completely from guestbooks, as it was not used

Suggestions on how to test this:
Make sure you can add authors on templates; multiple choice questions / options on guestbook

Does this PR introduce a user interface change?:
No

Is there a release notes update needed for this change?:
No

Additional documentation:
this code change was made to work with Payara5, but is backwards compatible with Glassfish 4.1

[coveralls]

Coverage remained the same at 19.661% when pulling 396e177 on 6230-gf-upgrade-part-deux into 076bc32 on develop.

[mheppler]

Weird. Couldn't tell what, if anything, changed on this line. Same with the template.xhtml file.

[mheppler]

Same comment as on guestbook.xhtml. What changed?

[kcondon]

@scolapasta

I'm seeing this in logs when I add multiple options
5:45
[2020-04-07T17:44:39.554-0400] [glassfish 4.1] [WARNING] [] [javax.enterprise.resource.webcontainer.jsf.renderkit] [tid: _ThreadID=55 _ThreadName=jk-connector(2)] [timeMillis: 1586295879554] [levelValue: 900] [[
Unable to find component with ID questionResponseOptions in view.]]
5:48
happens every time you click the + button on response options to multiple choice questions.

Also am seeing this is logs when guestbook with multiple choice questions appear, one for each question. Otherwise it functions.

[2020-04-07T17:55:44.128-0400] [glassfish 4.1] [WARNING] [jsf.externalcontext.no.mime.type.found] [javax.enterprise.resource.webcontainer.jsf.context] [tid: _ThreadID=149 _ThreadName=jk-connector(3)] [timeMillis: 1586296544128] [levelValue: 900] [[
JSF1091: No mime type could be found for file /edu.harvard.iq.dvn.core.vdc.jsp. To resolve this, add a mime-type mapping to the applications web.xml.]]

[2020-04-07T17:55:44.130-0400] [glassfish 4.1] [WARNING] [jsf.externalcontext.no.mime.type.found] [javax.enterprise.resource.webcontainer.jsf.context] [tid: _ThreadID=149 _ThreadName=jk-connector(3)] [timeMillis: 1586296544130] [levelValue: 900] [[
JSF1091: No mime type could be found for file /edu.harvard.iq.dvn.core.vdc.jsp. To resolve this, add a mime-type mapping to the applications web.xml.]]

[scolapasta]

The same thing occurs with dev branch, that is this is not introduced by this change. Since this PR isn't the cause and this allows us to get past some issues on payara5, I'd like to still merge this now.