Support for GD_GEM_USER, GD_GEM_PASSWORD
Mentioned possibility of GD_GEM_USER, GD_GEM_PASSWORD usage in CHANGELOG.md
Posibility to have different login and email for newly created domain user

Fixes #355
Properly propage client and project
Merge branch 'master' of https://github.com/gooddata/gooddata-ruby into fix-download-from-webdav
Fix rubocop issues
Merge branch 'master' of https://github.com/gooddata/gooddata-ruby into gd-vars

Conflicts:
	CHANGELOG.md
Fix issues
Fix issues
Add note about possibility to have different login and email to changelog
Ignore tmp/
Merge remote-tracking branch 'upstream/master' into fix-email-different-than-login

Conflicts:
	CHANGELOG.md
Merge branch 'master' of https://github.com/gooddata/gooddata-ruby into fix-download-from-webdav
Merge branch 'master' of https://github.com/gooddata/gooddata-ruby into fix-email-different-than-login

Conflicts:
	CHANGELOG.md
Fix Domain#add_user instance method

Fixes #354
Fix rubocop issues
Merge pull request #360 from korczis/fix-email-different-than-login

Posibility to have different login and email for newly created domain us...
Merge pull request #361 from korczis/fix-download-from-webdav

Fix download from webdav
Merge branch 'master' of https://github.com/gooddata/gooddata-ruby into fix-domain-add-user

Conflicts:
	CHANGELOG.md
Merge pull request #375 from korczis/fix-domain-add-user

Fix Domain#add_user instance method