This commit is for supporting of task scheduling in the future (right now tasks can only be scheduled to start immediately) for tasks that support scheduling. Start time is specified by including -t/--startTime along with a date string of format 'YYYYMMDDhhmmss'.
- import-ldif short version of templateFile arg was changed to -A to make way for the use -t as startTime
- date/string formatting and parsing code centralized in StaticUtils for consistency between task scheduling code and exiting StopDS scheduling code
- manage-task -t/--task option was changed to -i/--info