Remove logging/exception handling

Reworked classes require this until after refactoring
Remove trailing slash, cleaner URLs

Aesthetic change
Add templating

Search and replace keys using a common delimiter.
Refactor Customer

Query the Zendesk API directly for customer information rather than
using workarounds.
Refactor Ticket

Remove inheritance, pull information from Customer and Template to
create payload.
Remove concurrency, Twitter Bootstrap

Focus on running smoothly, essentially.
Outline Tickets class

Temporary code for outlining how concurrency will be handled.
Merge pull request #3 from jpmontez/templating

Templating