### prevtoinc 0.12

* add new functions `calculate_CI_I_pp` and `CI_np_bs` to calculate confidence intervals for the _gren_ estimate of incidence per patient
* add new function `create_patient_history_add` to simulate a timeline of a bed
* add "naive" estimator based on empirical probability of A=1 to the set of estimators for `calculate_I` and `generate_I_fast` 
* some smaller fixes and changes

### prevtoinc 0.11

* initial CRAN-release