Automated testing

[cimbi]

Create tests for following cases:

• Wrong password
• Multiple sessions opened in one interpreter
• Check discontinuities (times and samples)
• Check segment/channel/session metadata
• Check records
• Check sample/uutc conversion
• test reading by sample/uutc - channel
• test reading by sample/uutc - matrix
• test incorrect samples/uutc
• test start time/sample bigger than end time/sample and vice versa