Fix 'leave page' alert in IE CRM-12019
CRM-12030 - Always use '/' in URLs (even for Windows)
CRM-12030 - Use getRelUrls() instead of getRelPaths() to construct URLs
Merge pull request #69 from colemanw/CRM-12019

Fix 'leave page' alert in IE CRM-12019
Merge pull request #70 from totten/windows-extension

CRM-12030 - Resource URLS for extensions on Windows