Add more tests
Remove white spaces from textarea

With Firefox 30.0a1 (2014-02-11) the textarea was starting with
white spaces. They didn't break TeXZilla but I prefer start
with a empty textarea.
Merge pull request #19 from r-gaia-cs/textarea

Remove white spaces from textarea
Merge pull request #18 from r-gaia-cs/tests

Add minor tests
Add link to TeXZilla webapp demo
Merge pull request #23 from r-gaia-cs/webapp

Add link to TeXZilla webapp demo
Workaround WebKit/Blink bug when accessing the TeX annotation. #24
Merge branch 'master' into gh-pages
Update from master