default precision set up to 0.0 for adsal and trwsi algorithms. Check for isolated nodes added. ADSAL returns NORMAL
Merge pull request #5 from opengm/RC2.1

Merge pull request #84 from homul/RC2.1
fixed a visitor isue in ADSal
Merge branch 'RC2.1' of github.com:homul/opengm into RC2.1
Merge pull request #85 from homul/RC2.1

Rc2.1 default precision for TRWSi and ADSal set up to 0