Release of version 3.1.0

CADET has been extended to support networks of unit operations. Many
more changes have been made and the most important ones are listed
below. Note that the interface has changed and breaking changes had to
be introduced.

Major changes:
- Full support for networks of unit operations (CADET now natively
simulates SMB and other multi-column processes)
- Support for backwards flow in General Rate Model
- Replace OpenMP parallelization by Intel Threading Building Blocks
- Add some behavior tests using the CATCH unit testing framework
- Extended documentation (improved manual)
- Improved CMake build system

.gitignore

@@ -1,15 +1,58 @@
-.DS_Store
+### Linux ###
+*~
+
+# temporary files which can be created if a process still has a handle open of a deleted file
+.fuse_hidden*
+
+# KDE directory preferences
+.directory
+
+# Linux trash folder which might appear on any partition or disk
+.Trash-*
+
+# .nfs files are created when an open file is removed but is still being accessed
+.nfs*
+
+### macOS ###
+*.DS_Store
+.AppleDouble
+.LSOverride
+
+# Thumbnails
+._*
+
+### Windows ###
+# Windows thumbnail cache files
+Thumbs.db
+ehthumbs.db
+ehthumbs_vista.db
+
+# Folder config file
+Desktop.ini
+
+# Recycle Bin used on file shares
+$RECYCLE.BIN/
+
+# Windows shortcuts
+*.lnk
+
+
+### Ignore temporary editor files ###
 *.m~
 *.asv
 *._*
 *.*~
+
+### Ignore binaries ###
 *.mexmaci64
 *.mexa64
 *.mexw64
 *.mexw32
 *.dll
 *.dylib
 *.so
+
+### Ignore generated documentation and LaTeX aux files ###
 doc/doxy/html
 doc/tex/*.aux
 doc/tex/*.fdb_latexmk
@@ -28,3 +71,10 @@ doc/tex/*.gitinfo
 doc/tex/*.synctex.gz
 doc/tex/*.pdf
 doc/tex/docs/*.aux
+
+### Ignore IDE files ###
+.vs/
+.idea/
+*.iws
+*.kdev4
+.kdev4/

AUTHORS

@@ -3,3 +3,4 @@ Joel Andersson (Forschungszentrum Juelich GmbH, IBG-1: Biotechnology, Juelich, G
 Sebastian Schnittert (Forschungszentrum Juelich GmbH, IBG-1: Biotechnology, Juelich, Germany): First C++ implementation, first Matlab interface, first file format
 Andreas Püttmann (Forschungszentrum Juelich GmbH, IBG-1: Biotechnology, Juelich, Germany): Parameter sensitivities, Jacobians via AD, AD techniques (block- & band-compression)
 Samuel Leweke (Forschungszentrum Juelich GmbH, IBG-1: Biotechnology, Juelich, Germany): Complete rewrite of v3.0 from scratch, build system, code & framework design and architecture, Matlab interface, file format, frontends (MEX, CLI), domain decomposition (multi-unit systems), reactions
+William Heymann (Forschungszentrum Juelich GmbH, IBG-1: Biotechnology, Juelich, Germany): Networks of unit operations, compiler flag optimization