Bump version to 7.1.0b4

Merge pull request microsoft#458 from microsoft/users/pnechvatal/FixG…

…itSerializationIssues

Update models to fix deserialization error

Merge pull request microsoft#457 from microsoft/users/pnechvatal/FixM…

…issingGitAndRelease

Updating .gitignore and pushing the released files, adding git clients

Fix conflict

regen 6.0 as preview (microsoft#358)

* fix for issue microsoft#354

* catch OSError instead of FileExistsError, since FileExistsError is not available in python 2.7

* Revert "update apis to match 6.0 RTW"

This reverts commit 5428142.

* regen 6.0 as preview

* bump version

fix for issue microsoft#354 (microsoft#356)

* fix for issue microsoft#354

* catch OSError instead of FileExistsError, since FileExistsError is not available in python 2.7

Merge pull request microsoft#309 from microsoft/dev

Regenerate after fixing float type handling in generator

Merge pull request microsoft#308 from microsoft/users/tedchamb/bv

Regenerate after fixing float type handling in generator

Merge pull request microsoft#310 from microsoft/users/tedchamb/5.1fix

regen after fix for float types in generator for 5.0 and 5.1 apis

6.0 API

6.0 API