Fixed flush code so that flush will not send empty emails
Removed password from code

Added some basic documentation
gmail password update
1.Added new log param to enable flush at each message (default is flush)
2. Updated logs yml examples
3. Added support to flush log outputters to console and file if program terminates (in bin files)
Update log.rb

Added log debug level.
Update testing_server.rb

Remove from_email and from_email_password as they are defined in log.
Update testing_server.rb

Parameter already defined in log.
removed redundent log tests (using tested em log4r)
Updated log. If init is not executed then init will be called on first attemp to log (same behavior as old log)
fixed tests
Update backup_server

Fix small retries calculations.
Update content_server

Fix small retries calculation in content server
Merge remote-tracking branch 'origin/round_clock_testing' into testing_prepare_merge_to_master