Changes: - document installation on Windows - don't set gcc 4.7 as default compiler for MacOS X - add missing make target for SAKE - option for static linking to Makefile - library for lowrank regularization - new option for a very basic lowrank regularization in sense - new 'batch_svthresh' function - block processing functions (num/blockproc.[ch]) - divergence-free wavelet library - add help and error handling to bart.m - 'svd' and 'calmat' tools - rename 'resize' and 'svd' functions - add 'md_calloc' function - fft: add assert for null plan - linop interface for wavelets3 (waveop.[ch]) - fix wavelet3 benchmarks - remove support for CULA - other minor enhancments and bug fixes