Resolve stash conflict
Document the Exception to be thrown
Refactor the Logging for save status
Document tests
Document everything
More minor changes to doc
Merge pull request #380 from digawp/documentations

Complete DataStore Documentations
So paiseh! ><
Merge pull request #387 from digawp/documentations

Lint fix
Merge branch 'master' of https://github.com/cs2103aug2014-w10-1c/main into fix-display-edit-bug