simplify locales

Author:    Claudio Canepa <ccanepacc@gmail.com>
updatet .travis.yml to support two locales - eliminated abreviations in imports
compat 2.x in locale linux codepath
test_rss_feeds initializes LocaleBorg in setUp
LocaleBorg services as instance methods to ensure initialization
reshaping paranoid damage control forcalendar in windows
allow configure which locales in testing with environmet variables NIKOLA_LOCALE_DEFAULT and NIKOLA_LOCALE_OTHER
update changelog
remove Mac OS 1…9 (*not* OS X) newlines from regex

Signed-off-by: Chris “Kwpolska” Warrick <kwpolska@gmail.com>
reword CHANGES.txt message to fit the way others are written [Nitpicker’s Corner Part Two]

Signed-off-by: Chris “Kwpolska” Warrick <kwpolska@gmail.com>
fix a typo to test github irc bot (among others)

Signed-off-by: Chris “Kwpolska” Warrick <kwpolska@gmail.com>
Avoid duplicate content in sitemaps.

Respect the STRIP_INDEXES option.

Resolves issue #836.
Document resolution to #836.
Test if path ends with index_file, not *is* index_file.
Removed priority from sitemap.

Resolves issue #838.
Include XML in sitemap.

Filter out known unwanted files (such as the sitemap itself).

Resolves issue #804.
avoid rest warnings about duplicate targets
Merge branch 'master' of github.com:getnikola/nikola
addresed kw review
Merge pull request #839 from Aeyoun/remove-priority-from-sitemap

Removed priority from sitemap.