Removed occurred_activities partial #3258

which has been rolled into the various contact_links/activity partials

The reason for this partial was to allow a user to back enter
SAQ instruments. Either the saq_activity partial or the activity partial
(when a SAQ response set already exists) takes care of this action.
Styling changes
View refactoring #3258, #3274

These bugs prompted a large refactoring of the views
and partials. Each partial now should only have one
unit of work - either determine which partial to display
or display the information to the user.

Previously both the decision making and the view rendering
were coupled. This commit hopefully makes these individual
partials easier to read.

Note that the partial file names should be re-evaluated.
bump version to 1.3.8.pre
segment size has increased with Rev 36
View refactoring #3258, #3274

This commit includes the server side changes required
for the view changes to fix the #3258 and #3274 bug issues.

Closes #3258
Merge branch 'master' of https://github.com/NUBIC/ncs_navigator_core
View refactoring #3258, #3274

Fixed variable name.

These two issues go together because they share the same
partial which lists the upcoming activities for the participant.
Merge branch 'master' of https://github.com/NUBIC/ncs_navigator_core