Fix lang stings for capabilities and bump version

I received the following error on Moodle 2.6.3 with debugging turned on 

```
Invalid get_string() identifier: 'panopto:provision_asteacher' or component 'block_panopto'. Perhaps you are missing $string['panopto:provision_asteacher'] = ''; in /var/www/studysmartstage/acpe/blocks/panopto/lang/en/block_panopto.php?

    line 293 of /lib/classes/string_manager_standard.php: call to debugging()
    line 6839 of /lib/moodlelib.php: call to core_string_manager_standard->get_string()
    line 2962 of /lib/accesslib.php: call to get_string()
    line 44 of /admin/tool/capability/index.php: call to get_capability_string()
```

The following commit fixes the language file and also fixes some formatting. The version bump is required to install the lang file.