make compile_mex error to stderr as intended, edits for release version

Author: coalsont

@xmltree/private/compile_mex.sh

@@ -32,7 +32,7 @@ case "$target" in
         echo
     ;;
     (*)
-        echo "internal error" 2>&1
+        echo "internal error" 1>&2
         exit 2
     ;;
 esac

README.md

@@ -18,10 +18,7 @@ folder.
 
 The cifti structure returned by this library uses 0-based
 indices for vertex and voxel indices, 1-based for cifti indices, and
-the helper functions return 1-based indices for everything.  This library
-is in beta testing, and while function names and other conventions are
-expected to be near-final, it is possible they could be changed before
-a full release.
+the helper functions return 1-based indices for everything.
 
 # Usage
 All exposed functions have usage information available through the `help` command:

cifti_write.m

@@ -17,7 +17,7 @@ function cifti_write(cifti, filename, varargin)
     %   >> cifti.cdata = outdata;
     %   >> cifti.diminfo{2} = cifti_diminfo_make_scalars(size(outdata, 2));
     %   >> cifti_write(cifti, 'ciftiout.dscalar.nii');
-    libversion = '2.0.0-beta.1';
+    libversion = '2.0.0';
     options = myargparse(varargin, {'stacklevel', 'disableprovenance', 'keepmetadata'}); %stacklevel is an implementation detail, don't add to help
     if isempty(options.stacklevel) %stacklevel is so that so it doesn't get "ciftisave" all the time
         options.stacklevel = 2;