Recommissioned plant 20-Sept-2014, including adding seal water flow switch
Added version 17 from Dave Barrett
Removed references to the two different rigs.  This code will now be exclusively for our rig (not the French rig).
Recommissioned FT03 to a maximum flow rate of 10,000 l/h
Added seal water flow rate checking

Added many comments
Added comment for timer t0
Changed plantStatus to plantContents and added a number of CONSTs
Added detection of product source (on-rig or off-rig tanks)
Added registers and some minor product source changes
Removed state 2
Calculate target final level and ensure it's actually possible
Added reset code to set production registers to zero
Calculate current concentration factor
Corrected current concentration calculation and set defaults to -1
Corrected current concentration calculation, swapped the analogue channels fot LT01 and LT02 and commissioned a few level set points