removed CPPFLAGS from debian/rules
Debian package divided into multiple packages

* new packages are singular-bin, singular-common, and singular-dev

* the meta package singular depends on singular-bin and singular-common
 Debian package divided into multiple packages

* new packages are singular-bin, singular-common, and singular-dev

* the meta package singular depends on singular-bin and singular-common
fixed typo
fix: n_Normalize for rat. functions
Merge pull request #322 from mschulze/spielwiese

Spielwiese - debian package stuff