standardised to DBConnector instead of DbConnector
Merge branch 'command/Victor'
Added interfaces for Input and Output
Input implementation
Created controller, general instruction flow

Have not yet been checked and tested.
Create TaskImpl data structure

Created constructor, accessors and modifiers for Task.
Merge branch 'ui/victor' into command
Merge remote-tracking branch 'origin/controller/sharon' into command
Create TaskImpl data structure

Created constructor, accessors and modifiers for Task.
Changed Iterator for Result
Implemented output for creating new task and added stubs to the rest (for walking skeleton)
added output for delete
Changed Output Interface
Added output for Welcome Message and comments for InputImpl
Implement basic functions
Define member variables
Constructor for database
Required libraries
Read the contents of the file to return a task list
Parse each line to give a task