Remove build number from filename.

Setting appropriate names is more the place of release scripts. A new
version need not prompt committed changes in the name configuration of
all generated files.
Omit version from uninstaller name.

There's still a version field, but without additional work neither will be
kept up to date.
Remove whitespace before colono.

It seems to be normal for French text, but not English.
Remove recommendation to close all other applications.

It doesn't seem necessary, and bothering to do it is annoying.

Compare to default translation:
This will install [name/ver] on your computer.%n%nIt is recommended that you close all other applications before continuing.