important modifications : modified the tree structure of the software package. source code files are located in src/ and binaries are created in bin/. To compile type './configure' in the main folder and then 'make' or 'make generate_databases' for instance.
Modified the Makefiles to not always recompile everything for decompose_mesh_SCOTCH and to get rid of unwanted messages, deleted Mesh_Pieyre in examples, other minor modifs
updates attenuation handling so that users can directly specify Q_mu values rather than iflags in CUBIT and xmeshfem3D; updates some files referencing old paths to DATA/
added examples for meshfem3D and updated the manual
Minor updates to instructions for homogeneous example
Noise tomography capability added (./src/shared/noise_tomography.f90). Two new parameters NOISE_TOMOGRAPHY & NTSTEP_BETWEEN_READ_ADJSRC in Par_file.
updates SPECFEM3D manual and example readme files; bug fixes coupling surface detection for single layer cases
change the position of NTSTEP_BETWEEN_READ_ADJSRC in Par_file.  One example of noise sensitivity kernels is added
Manual updated for noise simulations
minor restructuring of examples files; adding flag USE_SOURCES_RECVS_Z in constants.h for locating source/receivers in randomly shaped meshes; updates some files to avoid compiler warnings and unifies character lengths for LOCAL_PATH; updates manual
adapts IRIS name convention for seismograms; updates seis_process/ scripts; updates manual
moves unused/old/deprecated files and routines into SPECFEM3D/utils/unused_routines; updates manual and Makefiles
updates examples/ files in SPECFEM3D; cleans up code
updates SPECFEM3D configure script and manual regarding scotch installation
updates SPECFEM3D configuration with scotch, manual and examples; further code clean up
adds reference solutions to SPECFEM3D examples
adds USER_T0 to fix start time; bug fix of start time with multiple point force sources; adds kernel smoothing routine smooth_vol_data.f90
Updated README files for four examples, to reflect current directory structure.
adds a README file to examples/ directory in SPECFEM3D
updated README files for examples