Updated api.py

Changes include:

* Added header information to sample
* Cleaned up commenting style
* Grouped sections of code together slightly differently
* Removed semicolon from end of lines
* Replaced extranious print statements with \\n
* Updated verbiage from \"Group\" to \"Tag\" in variable names and comments
* Added "DateCreated" field to the last search
* Updated comment regarding the search limit so that it accuratly represents the value assigned
* Updated page value from 1 to 0 so that it will return the first page of results
* Modified final print statement to include "DateCreated" field in a meaningful manner