Extended CN7500 device interface
Added io.Codec.transform
Added io.vendor.pfeiffer.VacuumProtocol
Changed organization to "daqcore"
Added packaging and run/install scripts, based on sbt-native-packager

Using original scala start scripts instead of scripts generated
by sbt-native-packager.
Add installdir/etc to CLASSPATH in start-scripts

Many config files (e.g. Akka, Logback) are searched for in CLASSPATH,
installdir/etc (i.e. SCALA_HOME/etc) seems a good default place for them.
Fixed toString methods in prot.keithley.{Request, Command}
Changed prot.keithley.Request to not automatically end with "X" command
Changed KeithleyParser and SCPIParser apply() to return new parser
Improved and extended Keithley protocol implementation
Added Keithley487
Adapted KeithleyParserSpec to changes in Keithley protocol implementation