Fix isobarPlot() when plotting loess fit or residuals and estimateCorrection() has not been run yet.
Update citation.
Modified segment function to take in a function for data transformation. Currently log2 (default) and sqrt transformation are implemented.
Implemented use if single transfrom function throughout the package.
Fixed calculation of the expected variance for all samples in line for plotting
Added option to disable plotting of segments and calls even if they are present in the object.

Added option to specify pointpch and pointcex.
Prevent ylim from being changed of calls are ommited from plotting.
Fixed T's to TRUE's
Move doSegments and doCalls outside of the loop in plot().
Update transformation functions, including the ability to use no transformation.
Bump development version number to 1.1.6.