Copy modification of changes to SimpleMinimizer to other minimizers and changed IFuncMinimizer interface. Also increased tolerance of BackToBackExponential test, which may fix problem test failing on 64 bit machine. Refs #1254.

Some Algorithm & Nexus tests require other algorithm libraries (e.g. DataHandling, CurveFitting). Re #1259.

Harmonize the Linux test scripts so that none of them have references to the third party directory. Re #100

Fix for Windows when ConfigService saving causes a crash if it encounters a blank line in the original file. Re #1248

Add a new rebin algorithm that inherits from SimpleRebin, also added properties documentation strings to ReBin. The algorithm uses cubic splines for a more accurate interpolation than SimpleRebin. Exactly what you get is a little hard to understand, however. For example most interpolations can be used to give better estimates of integrals while on our data, of course, this isn't the right thing to do. Unit tests to follow re #1225