Fix various Script problems

Hz not reported correctly.
Volts and Amps not correct in doubled or phase-phase in derived reference.
Second and subsequent integrations returning zero.

Version 02_07_04

Merge pull request boblemaire#318 from boblemaire/Add-integrations

Add integrations

Add confirm to delete integration

Improve integration handling

Add simsolar

Merge pull request boblemaire#313 from boblemaire/Alternate-RTC

Alternate rtc

Version 02_06_05

Spelling correction - version 0.6.1

Show mfg of VTs