* Junos dwdm interface sensor support …
four new sensors
Chromatic Dispersion ps/nm
Delay s (seconds)
Q_factor (dB)
preFEC_BER (ratio)
reuse of
SNR, dbm, temperature, current
* new dwdm sensors more generic, ber and quality_factor
* new sensors updated
* renamed html graphs new sensors
* fixed ber polling
* Change to base SI Hz and s.
* update sensor divisors to bigint
* rename sql-schema/216.sql to 218.sql
* YAML junos dwmd sensor definitions, except BER
* bigint divisor fixed
* deafult 1 divisior
* small fixes including schema change for another PR
* schema fix
