fixed two bugs:
1) pom.xml was stil referencing the 1-wire binding (cut and paste error)
2) need to parse RF messages numeric value as hexadecimal!!!
fixed another two bugs:
1) default contact bit mask should be 0x80, not 0x50
2) need to use Integer.decode() instead of .parseInt()
Fixes #1434
Merge pull request #1440 from digitaldan/alarm-sensor-fix

Fixes #1434
Merge pull request #1432 from berndpfrommer/alarmdecoder

fixed alarmdecoder bugs related to RFX message bitmaps
New DateTimeType Test (by @spali)