* Updated referencing in adiff calc
* Fixed minor typo errors
* Fixed asym calculations with 2h
* Added arithmatic operators for histograms, scalers, and variables
* init now imports bdata helper objects
* repr sorts internal keys
* Started using matplotlib underscore naming convention for internal functions
* Added oven_read_D to dkeys
* Removed dir locations for common triumf machines
* Depreciated pulse_off_s. Added get_pulse_s
* Removed fields() and help()
* Updated README