Added test to check if file is created

In testResolveWithValidAbsolutePath there is an extra assertion to check
if the template is copied
Bumped version to 2.8.1
reverted #1405 because it spawned 1451
Merge branch 'hotfix/2.8.1'
Merge pull request #1467 from rgeraads/master

revert #1405 because it spawned #1451
Alternative fix to #1460

Since array_values() is used when grabbing arguments in
AreAllArgumentsValidValidator::processArgumentValidation(), the index 0
would be seen as empty in the __set() function.
Update changelog with 2.8.1 info
Merge branch 'master' of github.com:phpDocumentor/phpDocumentor2
Removed need to cast empty string into an integer
Merge pull request #1469 from georaldc/develop

Alternative fix to #1460
Merge branch 'master' into develop
Merge branch 'develop' of github.com:phpDocumentor/phpDocumentor2 into develop
Merge pull request #1459 from mbed67/unittest20141029

Added test to check if file is created
Bugfix for issue #1468

Added check if iconv is loaded
Merge pull request #1471 from mbed67/iconv_issue

Bugfix for issue #1468
Updated version of phpdocumentor/reflection

After updating phpdocumentor/reflection to version 1.0.7 this
composer.lock needed to be updated to match this.
Used "auto_reload" setting to reload the Twig cache on demand
Merge pull request #1474 from webmozart/fix-twig

Used "auto_reload" setting to reload the Twig cache on demand
Merge pull request #1472 from mbed67/composer_lock

Updated version of phpdocumentor/reflection
Update phpDocumentor to use Reflection 2.0