getConstView should be always used for const operations, because
explicit is better than implicit. Overloading one method for cases which
have a completely different type (ConstViewType is *not* just a
const-qualified ViewType) can be very unclear (or even ambiguous) in
certain cases.

unsigned int cannot hold a value of 0.5, it was probably meant to wait
0.5 seconds, i.e. 0.5e6 microseconds.

Also, templates were reordered so that related functions are next to
each other.

It is already defined in VectorViewExpressions.h