missing clear for the current words list
Fixing filter method and placing it on the server

browser does not support isLetter or isDigit methods. placed the filter
on the server side to solve this issue
Message for user in case of wrong CLOSE syntax
remove debug message
removing all debug messages
removing debug messages
Fixing problems in result CLOSE

NearOK was not in the right place
Merge remote-tracking branch 'origin/master' into WORK-JG