1. Remove pre-everything message.
2. No-op sleep after message if BATCH or PACKAGE_BUILDING.
3. Add NO_FILTER_SHLIBS to keep the qt lib names from getting munged.
4. Bump PORTREVISION because (3) changes installed pkg-plist, even though
one supplied in port does not change.
(3) will fix a message indicating the libfoo.so.1 does not exist on
1,2 due to Mikhail Teterin. 3 is from Will. 4 is common-sense.