new version info for v2.1.2

configure.ac

 AC_PREREQ([2.69])
-AC_INIT([yac], [2.1.1], [hanke@dkrz.de], [],
+AC_INIT([yac], [2.1.2], [hanke@dkrz.de], [],
   [https://dkrz-sw.gitlab-pages.dkrz.de/yac/])
 AC_CONFIG_MACRO_DIR([m4])
 AC_CONFIG_AUX_DIR([config])

doc/Doxyfile

@@ -38,7 +38,7 @@ PROJECT_NAME           = YetAnotherCoupler
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = 2.1.1
+PROJECT_NUMBER         = 2.1.2
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a

doc/src/version_info.dox

 /**
  * \page version_info Condensed release information
 
+\section version_212 Version 2.1.2
+
+- interpolation method "Source Point Mapping" now has the option to distribute the source data to multiple target cell within a spread distance, which can be set by the user
+- interpolation method "Average" now has a new barycentric coordiante based weighting option
+- fixes issue that occured, when creating distributed grids on a single process
+
 \section version_211 Version 2.1.1
 
 - a lot of cleanup and refactoring 

src/version.h

-static char * yac_version="v2.1.1";
+static char * yac_version="v2.1.2";