Correct GetUploadedItems method

Json response has changed? Also added gitignore file
added git attributes file
Add UploadedItems to .Net35
Update and rename README to READMEmd
Rename READMEmd to README.md
Test line endings
Merge branch 'master' of https://github.com/skendrot/ArcGIS-Server-Admin-SDK
Merge upstream changes and reapply encryption of token changes