New test for default type == string

See ZF1 issue for more: https://github.com/zendframework/zf1/issues/229
Updated AbstractValue to satisfy new test

See ZF1 issue for more: https://github.com/zendframework/zf1/issues/229
Fixed to use namespaces
fixes #5062 - No longer throw Filename cannot be empty error
adding newline to eof
fixed typo
Merge pull request #5398
Merge pull request #5398 in master
Merge pull request #5387 from steverhoades/hotfix/5062

fixes #5062 - No longer throw Filename cannot be empty error
Merge branch 'hotfix/5387'

Close #5387
Fixes #5062
Now passing tests.
Removed trailing spaces in tests/ZendTest/XmlRpc/ValueTest.php
Merge pull request #5375 from volftomas/patch-1

Fixes default type == string
Merge branch 'hotfix/5375'

Close #5375