fix flow input attrs; fix rest activity defer close call

[fm-tibco]

What kind of change does this PR introduce? (check one with "x")

[x] Bugfix
[] Feature
[] Code style update (formatting, local variables)
[] Refactoring (no functional changes, no api changes)
[] Other... Please describe:

Fixes: #

What is the current behavior? default input values for flow were not being set; REST activity defer body.close call in wrong place.

What is the new behavior? addressed both of these issues