FIX: Edit / Settings / General / DefaultTimeStep works.

Go to first/last time step works. For 'Leave current time unchanged, if
possible' I do nothing.

Change-Id: I4e3efbb50f6eac8c24f1b02bc5a309a9f01d3146
Sort attributes using case insensitive + case sensitive sorting.

Sorting is done alphabetically with lower case letters following
upper case letters. For instance the following sequence is sorted:
AA, aA, BB, Bb, C

Change-Id: I2330d952366509c206166c0003f606a0f2674263
Merge topic 'sorting-15130' into next

a06fc0fd Sort attributes using case insensitive + case sensitive sorting.
Merge topic 'settings-15161' into next

c3bab35c FIX: Edit / Settings / General / DefaultTimeStep works.
FIX: Replace internal comment character to " (from ').

This way strings in Python are like this: '.... "..." ...'.

Change-Id: Ic084a4480f5f1b83cec84904a3670318aa504945
Fix warning.

Change-Id: Ie659ea483f2a2e7202550706216648d6da54a56d
Merge topic 'settings-15161' into next

cbca6e4c Fix warning.
Move VTK: Add missing numpy functions

Change-Id: I1b760211a90fd8b0545426952e8479b9595f9c0a
Merge topic 'python-calc-15125' into next

b3417556 Move VTK: Add missing numpy functions
ac344bac FIX: Replace internal comment character to " (from ').