Call Script Contact Change Push & Initial Startup Bug Fix

[mccarron]

• Fixes Animation Between Contact Changing on Script Screen #29 by pushing a new CallScriptViewController onto the navigation stack by also removing the previous by using an extension replaceTopViewController
• If we don’t have contacts for that issue yet we should not declare it. This makes the app look like it's mostly completed on startup.
• Also fixes Calling reason truncated on call script screen #30 with both nameLabel and callingReasonLabels needing to resize. Ensured it still works on a smaller screen.
• Also fixes a small screen issue with the Contact cell on the IssuesDetailViewController where the name would be truncated and you couldn't see the Contact's location.