Satnogs db filters

• old page_from and page_to parameters are removed
• add dates filters to download data from satnogs DB

Major bug fixing

• Start and Date should not be mandatory at this time on downloading satnogs db data

Satnogs DB

• new data source : satnogs db.
• fix configuration file bug where the path wasn't correct.
• Setup unit test (test folder)

Pypi

0.3.0

fix bug for pypi distribution

bug fixing

0.2.0

fix setup file bug + update readme + db data start

Polaris

glouton add as requirement into Polaris project.