Merged from trunk 5508:5521

Merged from trunk 5508:5521

make.globals has no business in profiles (genone)

create symlinks to html documentation if DOC_SYMLINK_DIR is set,
original patch by TGL <degrenier@easyconnect.fr> (bug #67130) (genone)

Make env variable example about USE shell independent (genone)

Always use vercmp for cpv comparisons (genone)

Stupid me, shouldn't jsut move a part of the patch (genone)

Attach the problematic data to the exception for debugging (genone)

Make the =* operator more robust (genone)

Documenting the loop a bit (genone)

=* operator sucks (genone)

also sanitize mycpv for =* handling (genone)

minor performance improvement (genone)

I hate this thing (genone)

Minor fixes for the =* operator (I hope we're done now :). (finally,
just dad again)

Use startwith to simplify =* matching.

svn path=/main/branches/prefix/; revision=5614