xmPreamble: set isXourse; use mutool (and not dvisvgm); use t2.7.5

Author: wiobber

.github/workflows/serve-ximera.yml

@@ -12,10 +12,10 @@ env:
   XIMERA_URL: "https://ximera.osu.edu/"
   ##XM_COMPILE_SEQUENCE: html
   # XIMERA_URL: "https://xerxes.ximera.org/"  
-  # XM_TO_PROCESS: "testxourse.tex" 
+  XM_TO_PROCESS: "testxourse.tex" 
   # XM_TO_PROCESS: "testxourse.tex calculus1.tex calculus2.tex calculus3.tex calculusA2.tex calculusE.tex calculus1TextbookBySection  [a-z]*/exercises/exerciseList.tex"
   # XM_TO_PROCESS: "review/*/exerciseList.tex *TextbookBySection/*.tex"
-  XM_TO_PROCESS: "."
+  # XM_TO_PROCESS: "."
 
 jobs:
   build-ximera:
@@ -62,7 +62,9 @@ jobs:
         run: |
           echo "Baking and Serving to $XIMERA_URL$XIMERA_NAME" 
           ls -alrt
-          # ./xmScripts/xmlatex veryclean 
+          rm -rf higher*/tikz
+          find * | grep tikz
+          ./xmScripts/xmlatex veryclean 
           ./xmScripts/xmlatex all -j 8 $XM_TO_PROCESS
           # echo "Recent git log:"
           # git log --oneline --graph --decorate --all -n 10