setup: install translation files as package data Remove the `install_package_data' subclass of `install_data' and use the `package_data' functionality provided by distutils instead. As package data must be located within the package directory, the data files are now generated in the build directory. To simplify the functionality of this change, the top-level `doc' and `templates' directories have been moved into the `mercurial' package directory.

 <tr class="parity{parity}">
  <td class="age">{date|age}</td>
  <td class="author">{author|person}</td>
  <td class="description"><a href="{url}rev/{node|short}{sessionvars%urlparameter}">{desc|strip|firstline|escape|nonempty}</a>{inbranch%changelogbranchname}{branches%changelogbranchhead}{tags%changelogtag}</td>
 </tr>