Editing Release Notes (section)

==Release 1.6 (2014-05-09)==

===Additions and enhancements===

To the reproducible documents collection:

* gallery: migration gallery
* Moved jsg to tccs
* tccs/buttefly: A fast butterfly algorithm for generalized Radon transforms (Hu, Fomel, Demanet, and Ying)
* tccs/opwd: Omnidirectional plane-wave destruction (Chen, Fomel, and Lu)
* tccs/specrecom: Automated spectral recomposition with application in stratigraphic interpretation (Cai, Fomel, and Zeng)
* Moved sep/aniso to cwp/aniso
* icp/sam2013gpushortestpath: Shortest path ray tracing on parallel GPU devices (Monsegny and Agudelo)
* tccs/nar: Seismic data decomposition into spectral components using regularized nonstationary autoregression (Fomel)
* tccs/dsrtomo: First-break traveltime tomography with the double-square-root eikonal equation (Li, Vladimirsky, and Fomel)
* cup/rna2d: Random noise attenuation using f-x regularized nonstationary autoregression (Liu, Chen, Du, and Wu)
* cup/rna3d: Noncausal f-x-y regularized nonstationary prediction filtering for random noise attenuation on 3D seismic data (Liu and Chen)
* tccs/psp: A parallel sweeping preconditioner for heterogeneous 3D Helmholtz equations (Poulson, Engquist, Li, and Ying)
* tccs/uncert: Structural uncertainty of time-migrated seismic images (Fomel and Landa)
* osu/shalek: modeling examples from Kyle Shalek and Jeff Daniels
* tccs/phase: Local skewness attribute as a seismic phase detector (Fomel and van der Baan)
* tccs/optapert: Selecting an optimal aperture in Kirchhoff migration using dip-angle images (Klokov and Fomel)
* Replaced most of Mathematica figures by Sage figures to improve reproducibility
* tongji/qpwave: Simulating propagation of separated wave modes in general anisotropic media, Part I: qP-wave propagators (Cheng and Kang)
* xtju/gpurtm: RTM using effective boundary saving: A staggered grid GPU implementation (Yang, Gao, and Wang)
* tccs/emdpf: Random noise attenuation by f-x empirical mode decomposition predictive filtering (Chen and Ma)
* Changes trip/iwave to trip/struct: IWAVE structure and basic use cases (Symes)

To SCons:

* Experimental IPython notebook in book/rsf/rsf/test/test.ipynb
* MKL check in configure only relevant for icc
* Upgraded to scons-2.3.1

To documentation:

* Added CITATION.txt file for the Madagascar paper in JORS.

To APIs:

* Updated numpy API for compatibility with the latest version of numpy
* Cast to float when writing data in Python API

To the Python package:

* fftw (if present) is included in core libraries during compilation
* Cygwin no longer provides libtirpc, removed it from configure 
* Added support to tikz figures in reproducible documents
* Replaced -nojvm with -nodesktop for Matlab-generated figures
* Added workdir= paremeter to Flow

To programs:

* Added shift= parameter to sfkolmog
* Added eps= parameter to sflsfit
* user/fbroggin: New contributor (Filippo Broggini)
* sfpef renamed sfhpef
* sfpef (Wiener predictive error filtering) borrowed from SU's supef
* Added color=x cubehelix color scheme in sfgrey and sfgrey3
* Added inv= option to sfintbin
* Added pclip= option to sfscale
* user/jmonsegny: New contributor (Jorge Monsegny)
* user/pyang: New contributor (Pengliang Yang)
* creating rsfgee library in user/gee to avoid code duplication
* added sfput-like behavior in sfwindow and sfpad
* user/zhiguang: New contributor (Zhiguang Xue)
* user/hwang: New contributor (Hui Wang)
* user/ditthara: New contributor (Detchai Ittharat)

===Bug fixes===

In the reproducible documents collection:

* Fixed reproducibility issues in tccs/diffr/gom

In documentation:

In APIs:

* Look for mex in matlab's directory to avoid confusion with other programs named mex
* Fixed parallel.c for the case of less jobs than nodes
* Added missing fflush in sf_simtab_input
* Avoid taking log(0) in vp_optimal_scale
* Fixed memory leak in gettmpdatapath in file.c
* Fixed small memory leaks in getpar.c

In the Python package:

In programs:

* sfbyte: "clip" determination when the first plane is zero 
* Fixed size definitions in sfinttest1
* Fixed off-by-one bug in sfrickerfit
* Avoid cropping of images by vplot2eps
* Read the whole cube for finding contours in sfcontour3
* Fixed shift by one in sfdespike
* Fixed interact= bug in xtpen
* Fixed the case of negative o1 in sfsegyheader

In the build system:

* Set -fopenmp for linking with gcc
* Fixed directory locations in pens/fonts
* Fixed typo in the configure script
* Fixed the case of RSFSRC set to a different directory
* Fixed oglpen compilation on Cygwin

===Changes in defaults and interfaces===