Display error when using incompatible browser

added error callback for getusermedia
Fixed css class conflict with bootstrap
Changed peer id placeholder text
Added support for other languages via hash
Fix so that it doesn't disconnect from server after every call
Cleaned up speech state on rejected calls.
Removed unused code.
Added English readme
Changed Japanese text to English
Added instructions on how to change language
Merge pull request #5 from nttcom/cphone_fix

Cphone fix
Merge pull request #6 from nttcom/skyway_dev

update caption-phone