[#862]: Replace slashes for path with DIRECTORY_SEPARATOR

I suspect that the issue mentioned in #682 comes from the routing. The routing
uses '/' instead of directory separator and it would seem that this is not
translated to the OS' specific separator.

By replacing the '/' with DIRECTORY_SEPARATOR I hope it will solve the issue.
[#889]: Fixed display of packages on the frontpage
Merge pull request #893 from mvriel/889

889
Bump version
Fixes to aid with template inheritance
Update PSR to use footnotes and add more chapters
Fix for @var descriptions
[#871]: When no deep-link is available; do not return root path
[#871]: Update changelog
Merge pull request #894 from mvriel/862

[#862]: Replace slashes for path with DIRECTORY_SEPARATOR
Add changelogs for template fixes
Response information was missing from comment
Merge branch 'release-2.0' of github.com:phpDocumentor/phpDocumentor2 into release-2.0
Update changelog
Removed helper binaries given they are seldomly used and only add confusion
Remove php memory limit and commit changelog
Magic methods and properties should inherit and be shown
Add PHP 5.5 for travis to test against
Update changelog
Update changelog