Translation strings for search box.
Bumping minimum Django version to 1.6.2

Not strictly necessary but 1.6.2 has a lot of bug fixes.
Added more translations from transifex
Merge pull request #102 from spapas/master

Added more translations from Transifex
Merge branch 'master' of https://github.com/torchbox/wagtail
Add a change to bump Travis into running again

Internal setup failure (?) in Travis led to spurious test error
Translated wagtailadmin into Chinese language.
Translated wagtailusers app into Chinese language
Translated wagtailembeds app into Chinese language.
Merge branch 'master' of https://github.com/utek/wagtail into utek-master
Translated wagtailimages app into Chinese language.
Translated wagtailcore into Chinese language.
Merge pull request #103 from lihan/chinese-translation

Chinese translation for 5 sub apps
Translated wagtailredirects app into Chinese language.
Translated wagtailsnippets app into Chinese language.
Translated wagtailsearch app into Chinese language.
Translated wagtaildocs app into Chinese language
Merge pull request #109 from lihan/chinese-translation

Translated wagtailredirects, wagtailsnippets, wagtailsearch and wagtaildocs to Chinese lanuage
Added more translations

The zh (chinese) translations that were commited with a PR had a number of
syntax error so they had to be edited by hand -- before asking, no I don't
know chinese :p -- I used msgfmt to find out the errors.
Merge pull request #110 from spapas/master

Added more translations