Copy / rename zip file. Improved error checking

Copies the downloaded credentials zip from Downloads to Dropbox dir.
Also, improved error checking to handle error when website is
unavailable.
Adjust for Marketo form change

Form ID changed from Company to ECC_Account_Name__c.
Updated GA code insertion

* Improved script for inserting Google Analytic code. Better error
checking. Fixed bugs.
* Added file containing GA snippet
Increased automation; removed dropbox stuff

Added code to generate random strings. One string will be used as
prefix to the credential zip file name. The second string will soon be
used as the user's default password.

Removed code related to Dropbox.

In "add-user-script", added check for required # of parameters and to
get then post user credentials to a location user can easily download
from.
Merge pull request #1 from eucacolby/colby-local-tweaks

Colby local tweaks