Fixed headers.
Removed '\nocite{*}'.
Fixed checksum in wsemclassic.dtx.
Removed \AtBeginDocument.

Use of \AtBeginDocument was incorrect since drawing macros were used.
This lead to incompatibilities with other packages.
Adapted user doc to removal of `\AtBeginDocument`.

Users now have to run `\maketitle` and `\tableofcontents` themselves.
Merge branch 'foreign-pkg-compat'

Conflicts:
	wsemclassic.dtx