Starting point of ja.
Merge remote-tracking branch 'upstream/3.0' into 3.0-ja
Merge remote-tracking branch 'upstream/3.0' into 3.0-ja
Merge remote-tracking branch 'upstream/3.0' into 3.0-ja
WIP.
Merge branch '3.0' into 3.0-ja
WIP.
Merge remote-tracking branch 'upstream/3.0' into 3.0-ja
Update images for the chapter 2 and 5
Merge remote-tracking branch 'upstream/3.0' into 3.0-ja
Merge pull request #36 from lionel-m/chapter-4-rss
Working.
Merge branch '3.0' into 3.0-ja
Update images chapter 5
Added new Inserttag flags to Contao 3.1 documentation
Improved description of insert tag flags.

Added third column with link to external PHP function or additional
information for internal Contao methods.
Added english translation
Merge pull request #41 from Toflar/patch-1
Add a few corrections to the previous pull request
Use `target="_blank"` for links to php.net