our first beta release

please setup the back-end database environment before you use this software.
please download the IFC files from /test-files in our repository in order to start modeling the indoor space.
please DO NOT modify the properties files in /conf manually.

new features:

1. the three-layer generation work-flow for generating indoor host environment, positioning devices, moving objects, trajectories and positioning records.
2. support parsing and modeling the indoor space from IFC files.
3. support generating three types of positioning devices, i.e., Wi-Fi, bluetooth and RFID.
4. support generating three types of indoor objects with different moving pattern.
5. support applying three different positioning algorithms for generating positioning records, i.e., fingerprinting, proximity-analysis and trilateration.