### Changes in `irtDemo` version 0.1.5
 - Maintainer clarity 
 - Added reference

### Changes in `irtDemo` version 0.1.4
 - Allowed 0 (zero) discrimination in some applications
 - Bug fixes for MIRT information plot
 
### Changes in `irtDemo` version 0.1.3
 - Removed online dependency

### Changes in `irtDemo` version 0.1.2
 - Exported `irtDemo` function in NAMESPACE
 - Added README file
 - Added NEWS file
 
### Changes in `irtDemo` version 0.1.1
 - Bug fixes for "`est2pl`" and "`est3pl`" applications
