How do I write to the console in Google App Engine?
Use log.setLevel(Level.ALL) to see messages
The default message filtering level seems to be 'error'.  I didn't see any useful log messages until I used the setLevel() method to make the .info and .warning messages visible. 
Text printed to System.out wasn't showing up either.  It seems to be interpreted as log.info() level messaages.
Often when I am coding I just like to print little things (mostly the current value of variables) out to console. I don't see anything like this for Google App Engine, although I note that the Google App Engine Launcher does have a Log terminal. Is there any way to write to said Terminal, or to some other terminal, using Google App Engine?