Fix invalid links in japanese tutorial
translate japanese tutorial for 0.13
Remove needless text from intro
Fix mistranslation
Fixed typos; installaing -> installing
Deleted documentation referencing ivy.cache-directory.

This configuration seems has been deleted. I couldn't find anything related to it in the code.
Update 02-Community-Plugins.md

The original xsbt-coveralls-plugin is no longer maintained, and the author now links to the maintained version. This commit updates the link to the maintained version.
Add sbt-doctest
Bump release version to sbt 0.13.6
Merge pull request #50 from wchen9911/update-doc

Deleted documentation referencing ivy.cache-directory.
Merge pull request #51 from sksamuel/patch-3

Update 02-Community-Plugins.md
Merge pull request #49 from mjparrott/typo

Fixed typos; installaing -> installing
Merge pull request #52 from tkawachi/patch-1

Add sbt-doctest
Merge pull request #53 from sbt/wip/bump-version

Bump release version to sbt 0.13.6
Give HTTPS download urls for SBT

...in celebration of SBT 0.13.6, which uses HTTPS to access Maven Central.
Use HTTPS urls in preference, where available
Merge pull request #54 from rtyley/use-https

Use HTTPS download urls for SBT!
Modify JA translation
add sbt-heroku plugin
Merge pull request #58 from xuwei-k/sbt-heroku

add sbt-heroku plugin