Fixing hebrew wording and style

After the changes Ian made to the RTL.
fixing the wording
Update sass for other RTL bullet cases
Adds theme color meta (based on section) to the head
Merge pull request #905 from google/ido-he-fixes

More fixes to the hebrew version
Fix indentation in _en/starter-kit/index.html

Two spaces should be used to indent HTML code, instead of tabs. [1]

[1]: https://google-styleguide.googlecode.com/svn/trunk/htmlcssguide.xml#Indentation
Tentatively fix issue #854

The images have their path hardcoded, which means they are broken
in the development site served by grunt (which has no web folder).
fix typo
add images-in-markup.markdown to _zh-cn
translate images-in-markup.markdown into Chinese
Merge pull request #908 from chenxsan/fix-typo

fix typo
Merge pull request #907 from jacquerie/issue-854

Issue 854
Merge pull request #909 from chenxsan/media

translate images-in-markup.markdown into Chinese