Fix Bug 909812, ensure symlinks are relative
Customizations -> Customization

Reuse the existing string from standard template
use constants for static paths
Merge pull request #145 from flodolo/reuselabel

Customization -> Customizations (reuse existing string)
Merge pull request #144 from ossreleasefeed/bug909812-fix-generate-symlinks

Fix Bug 909812, ensure symlinks are relative