Added condition to exclude files starting with a dot.
Usually those files contains medatada (like .directoty in KDE) and can confuse the generation of thumbnails and galleries.
Merge remote-tracking branch 'upstream/master'
Add pelican-page-order plugin
Merge pull request #253 from akhayyat/page-order

Add pelican-page-order plugin
fixed conditionals in usage example

from next_article to next_article_in_category, next_article_in_subcategory.
Merge pull request #256 from tiarno/master

neighbors plugin: fixed conditionals in usage example (readme.rst)
README: add pelican-page-order description
Add pelican-page-hierarchy plugin
Merge pull request #261 from akhayyat/page-hierarchy

Add pelican-page-hierarchy plugin
Updates PLUGIN_PATH to PLUGIN_PATHS

Former is deprecated according to the `pelican` command.
FIX: Sitemap offset-naive datetimes error
indent error
Generate locale_date and locale_modified and rename update to modified
Add Multi Neighbors plugin.
Merge pull request #270 from tomasherman/master

Generate locale_date and locale_modified and rename update to modified in filetime_from_git
Update Multi Neighbors to latest.
Merge pull request #271 from davidlesieur/master

Add Multi Neighbors plugin.
Merge pull request #269 from barraudf/master

FIX: Sitemap offset-naive datetimes error
Merge pull request #266 from mlissner/patch-1

Updates PLUGIN_PATH to PLUGIN_PATHS
Merge pull request #248 from mikitex70/master

Added exclusion of files starting with a dot