fix rb_application_controller not_configure render path error
简单整理了一下简体中文。

尚未完成，会找时间完善，估计还需要3～4次才能完成。
Merge pull request #871 from harrywalker/patch-1

translations update for simplfied chinese
typo in locale
Update README.md
Update README.md
fix tooltip url for sub-uri setups
Merge pull request #881 from bpct/fix_not_configure

fix rb_application_controller not_configure render path error
use cached burndown data for statistics calculation. helps #877
Merge pull request #883 from backlogs/bug/877-loadingtime

use cached burndown data for statistics calculation. helps #877
do not use empty cached burndowns
v0.9.37
redmine 2.3 compatibility

workaround redmines pinned capybara
remove Iconv from active code
fix issue query filters
fix featuretests
update redmine_install
test for release burndown csv
Merge pull request #886 from backlogs/redmine-2.3-compat

redmine 2.3 compatibility
Merge branch 'master' into rails3

Conflicts:
	Gemfile
	app/helpers/rb_common_helper.rb
	features/step_definitions/_given_steps.rb