Fix URL substitution on reverse proxies

Closes #47.
Merge pull request #48 from piojo/reverse-proxy-fix

Fix URL substitution on reverse proxies
aii-ks: clean up usage of extra_packages vs. base_packages vs. packages
(extra_packages no longer taken into account)
remove extra_packages from pod; clarify usage of base_packages
Merge branch 'extrapkgs' of https://github.com/jouvin/aii into aii_base_extra_packages
remove extra_packages from fedora14 variant
cleanup whitespace
remove extra_packages from schema
Merge pull request #55 from jouvin/extrapkgs

aii-ks: clean up usage of extra_packages vs. base_packages vs. packages
Merge pull request #57 from stdweird/aii_base_extra_packages

AII removal of extra_packages and clarification of base_packages
Merge pull request #50 from stdweird/aii_ks_yum_kernel_post

AII yum install post support glob
Merge branch 'master' into more_aii_fixes