exclude project apps in project.repoapps
exclude project apps in project.repoapps

Including projects in project.repoapps led to "sinan dist" building
a tarball containing multiple versions of the same app,
if a project app was also available in the local repository
with installed applications.

Signed-off-by: Mikael Magnusson <4e7a311fb75fcba19ee00424657e05322bd36bf2@users.sourceforge.net>

erlware-deprecated/sinan,ericbmerritt/sinan,erlware-deprecated/sinan,ericbmerritt/sinan,erlware-deprecated/sinan,ericbmerritt/sinan