Renamed OnSliderAcceptST argument

old: OnSliderAcceptST(float a_value)
new: OnSliderAcceptST(float afSelectedValue)
New naming is more descriptive.
WaitingTimeBetweenInits can be set to 0.0

- Updated OnSliderAcceptST() logic to allow WaitingTimeBetweenInits to
be set to 0.0
- Updated English.txt to reflect this.
Turned script properties into variables
Reversed order of mods in registry page

Reversed the order that the mods are displayed in the registry page, to
make it the same as the one in the InfoManager page.