Update Statement.php

Added \ to InvalidArgumentException to prevent it from using the TinCan namespace.
Update RemoteLRS.php

Spellcheck.
Merge pull request #6 from Klaasie/patch-1

Minor fixes, @Klaasie thanks!
Improve exception message for failed setId in Statement
Fix issue with asVersion not setting properly

When looping through multiple `$directProps` values, `$result` will not be set correctly after the first pass.
Merge pull request #9 from ht2/master

Fix issue with asVersion in ContextActivities not checking for pre-existence of return result correctly
Add response getter/setter to Result

The `$response` value getter/setter was omitted making it impossible to set the response on a result.
Merge pull request #10 from ht2/master

Add response getter/setter to Result
Add "scorm" as composer keyword
Correct 'member' handling in Group
Turn off noise in test suite
Default ContextActivities properties to arrays

* The check to make sure the properties were set was not happening soon
  enough so that the set methods through the _listSetter were trying to
  push to arrays that were not defined yet
* Improve tests for fromJSON instantiation in ContextActivities
Merge pull request #12 from brianjmiller/master

Fixes for Group and ContextActivities