Changed model back to four compartments for simplification
diffeq.m: converted back into the 'inefficient' method of solving the ODEs so that real temperatures can be used instead of regressed ones
diffeq.m: was testing to see if I could do some toying with global functions to allow changing the fit coefficients, but didn't work
diffeq.m: made a lot of changes so that it can read data from a file at uneven intervals\; should be pretty robust
diffeq.m: fixed the program failing to plot
diffeq.m: now interpolating between intervals instead of hard steps
diffeq.m: fixed interpolation running over by adding an extra data point, essentially tricked lsode. Also reduced the minimum time step to 0.0001 days for speed