Use drush aliases to loop on all sites instead of sites.
Close #535
Improve the detection of default with the path of a site.
Use a utilitary function to extract the exact site name from a site path.
Close #572
Silence grep tests with -q
Update scritp so they respect the new convention.
Update chmod: all scripts are executable.
Add piwik id for ftorregrosa
Fix indent
Put piwik sites in alphabetical order.
Piwik: each site have its piwik id as described in #230
Rename d7-all-reset-piwik-variables.sh in d7-reset-piwik-variables.sh
