ADS-1
Added detection of makefile variant based on project.drupal.build.stable and project.drupal.build.type variables,
Added option for absolute paths in import-file task inside build.import.xml
Path fixes
ADS-1
Moved things from ads.profile / ads_form_install_configure_form_alter function to build.xml / site-install invocation
Merge pull request #8 from nseam/master

Build script fixes