FIX: ParaView does not crash on Disconnect.

Paraview was crashing if showing data through Live and disconnected.

Change-Id: I58744a36209b86d1d4c4124273b17cc22c87aa16
Move Catalyst writers parameters proxies into insitu_writer_parameters

Change-Id: I3a714d9a2ac323e172448386d9d9472dd2187afc
Catalyst writer parameters proxies cannot have extracts.

So, there is not icon and you cannot click on these proxies.

Change-Id: I721f92b7d50ed4915abe160364a9d4a4f47d82a4
Use a 'file save' icon for writer parameters proxies.

Change-Id: I3525075f23a0ff6d334e4092b1d43110f9fc27b5
Try to fix CatalystLive test.

Catalyst runs independently from CatalystLive. CatalystLive waits for certain
time steps from Catalyst, however Catalyst can run first and finish before
CatalystLive. We fix this by setting a very long Catalyst run and
killing it when CatalystLive finishes.

Change-Id: I08a36911b6357eae997356c42d94095f93b96c7e
Disable Delete for Catalyst PipelineSource objects.

This commit also includes some renames for consistency.

Change-Id: I1f7ef5cb37aa8146cab3bcd761732e6114e768bf
Merge topic 'live-breakpoint' into next

7ed2b148 Disable Delete for Catalyst PipelineSource objects.
4e43dbbe Try to fix CatalystLive test.
b9b5eeb9 Use a 'file save' icon for writer parameters proxies.
23572702 Catalyst writer parameters proxies cannot have extracts.
89b6e507 Move Catalyst writers parameters proxies into insitu_writer_parameters
e6bab00e FIX: ParaView does not crash on Disconnect.