Added new class Zoo and separated functions for test cases.
Defined new function for display in main.cpp
Corrected pointers in zoo.cpp
Added error message in Zoo constructor.
Added input file zoo.txt
Pulled remote zoo. Resolved conflicts
Resolved conflicts in pro file
Added functions for accessing members of the class Animal
Separated lists
Updated individual animal lists first, and then pushed everything into
animals list
Removed calls to update functions
The update functions have been deleted. so all calls to them are deleted
too.
Added std namespace
std::endl
Merge pull request #2 from adhishm/zoo

Zoo