- fix bug 2159: in the case that copasi encounters an n-ary relational oparator, this one will be replaced by an AND of the binary relational operator.
- fix bug 2159: in the case that copasi encounters an n-ary relational oparator, this one will be replaced by an AND of the binary relational operator.

copasi/COPASI,jonasfoe/COPASI,copasi/COPASI,jonasfoe/COPASI,jonasfoe/COPASI,jonasfoe/COPASI,copasi/COPASI,copasi/COPASI,jonasfoe/COPASI,jonasfoe/COPASI,copasi/COPASI,jonasfoe/COPASI,copasi/COPASI,jonasfoe/COPASI,jonasfoe/COPASI,copasi/COPASI,copasi/COPASI,copasi/COPASI