Implement setting tasks with a high priority using /edit 0!
Implement /edit 0 by deadline.
Removed unused member variable committedTransactions
Put parameters to one line each if all do not fit in one line
Remove TODOs that are not going to be done
Update documentation
Children nodes of resources are now resource instead of task
Fix wrong date syntax
Refactor the edit syntax rules.
Remove the utility prefix for the value types.
Better failed transaction handling
Remove unnecessary include
Merge pull request #346 from lowjoel/unify-edit-add-syntax

Unify edit add syntax
Update boost and install the date time package
Minor refactoring and documentation to Post and PutOperation
Fix #335 Display description in the dependencies field.
Merge pull request #348 from evansb/update-boost

Update boost and install the date time package
Refactor these copy-paste tests.
Test for the removal of subtasks and dependencies.
Implement tests for attachments.