Please merge apache2 2.2.19-1 (main) from debian unstable (main)

Binary package hint: apache2

 apache2 (2.2.19-1ubuntu1) oneiric; urgency=low
 .
   * Merge from debian unstable. Remaining changes:
     - debian/{control, rules}: Enable PIE hardening.
     - debian/{control, rules, apache2.2-common.ufw.profile}: Add ufw profiles.
     - debian/control: Add bzr tag and point it to our tree
     - debian/apache2.py, debian/apache2.2-common.isntall: Add apport hook.
     - debian/control, debian/ask-for-passphrase, debian/config-dir/mods-available/ssl.conf:
       Plymouth aware passphrase dialog program ask-for-passphrase.
 .
 apache2 (2.2.19-1) unstable; urgency=low
 .
   * New upstream release.
     - Makes apr-md5 the default algorithm for htpasswd, removing the 8
       character limit of the crypt()-algorithm. Closes: #539246
     - Fixes merging of IndexOptions. Closes: #394688
     - Documents why order of ProxyPass and <Proxy> blocks matters in the
       configuration. See "Workers" section in the mod_proxy documentation.
       Closes: #560020
   * For multiple instance setups, correctly determine the config dir in the
     init script if it is called via a start/stop link. Closes: #627061
   * Make a2enmod's restart hint more cut'n'paste friendly. LP: #770204
   * Make it clear in README.multiple-instances that the MPMs are shipped
     in the apache2.2-bin package.