Amend .gitignore to exclude dictionary data

Author: bwmilby

.gitignore

@@ -66,7 +66,7 @@ environment_log.txt
 
 # Documentation #
 #################
-Documentation/html_viewer/resources/data/api/*.js
+Documentation/html_viewer/resources/data/api*/*.js
 Documentation/html_viewer/resources/data/guide/*.js
 
 # Additional externals #