Added browser testing files to .gitignore.
Added browser testing files to .gitignore.

Jobava/jed-gettext-parser,WrinklyNinja/jed-gettext-parser,WrinklyNinja/jed-gettext-parser,Jobava/jed-gettext-parser,WrinklyNinja/jed-gettext-parser,Jobava/jed-gettext-parser