add extra logging
save hits sync (vs. save in bg)
add slf4j-simple to enable logging
add logs
add more log
extra loging
extra loging
change the bootstarp to adapt parse.com cannot return more than 1k rows
fix openjdk1.8 compilation problem
clean up
when have 5 clients send each 1000 request at same time, I got duplicate Base64 value in short_url col, so try to make the method synchronized ..
return all values using skip=1000 and filter by query date