updated all mock files
fixed upload connecting to the qsi
Merge pull request #1402 from OpenNTF/playground2

Playground2
Better detection of the content-type in the API explorer
Better time calculation in the API explorer
FilesView bugfix
Merge pull request #1403 from benjamij/moodle-files-view-fix

FilesView changed IDs.
Fix summary xpath
fixed unrandomizing, file url
fixed more tests
updated file mock files
added missing mock file
Merge pull request #1405 from LorenzoBoccaccia/master

[Fixed] FileService URLs and some related test failures
Merge pull request #1404 from fmoloney/BlogFixes

Fix summary xpath
Implemented FileService and samples
Merge pull request #1406 from benjamij/php-api

Implemented FileService and samples
Merge remote-tracking branch 'upstream/master' into playground2
Merge pull request #1408 from priand/playground2

Playground2