Updatescript 1.4.1
Updatescript 1.4.1

- Installs bc
- Introduces function for apt-get install (call it with apt_install('package1', 'package2',...)

Closes #905 and closes #907

mschlenstedt/Loxberry,mschlenstedt/Loxberry,mschlenstedt/Loxberry,mschlenstedt/Loxberry,mschlenstedt/Loxberry,mschlenstedt/Loxberry