First release of Force Ramp application

This is a stable release of my program for doing force ramps. While this is first release on github (hence you would expect this to be version 1.0), I have had previous internal versions and am now on version 2.1.

Important note; Github automatically appends the "-2.1" to the name of the directory in the zip file. Please remove this extra naming, so that the name of the directory is just "Force-Ramp". This will prevent problems with other programs trying to find the forceramp.ipf file.