closes #1419
refactor of thread tools
Add Japanese translation
Use less characters to describe the same meaning
Merge pull request #1440 from rjyo/feature/japanese-translation

Add Japanese translation
jp config to tx
moved all installation guides into separate files; finished converting installation section to reST
Merge remote-tracking branch 'origin/master' into docs
closes #1441
docs: installing nodebb on the cloud
ported heroku docs
ported cloud9 docs
organized installation guides better
configuring databases, init
ported mongo docs
ported level docs
added ToC and more description to intro
proxies init
fixing menu
edited makefile to delete the build directory before compiling