removed search.bak
implment streams_core with simplified-chinese language
fixed db_missing in step1 with simplified-chinese language
Close connections when work is done in upload()

Depending on keep-alive configurations, it is not uncommon for multiple uploads with higher numbers (10 - 15+ files) to cause a "Partially Uploaded" error. This fixes that bug.

http://www.bizzeh.com/739/php-problem-with-upload_err_partial-file-upload-error-code-3

http://stackoverflow.com/questions/2937466/why-might-a-file-only-be-partially-uploaded
Merge remote-tracking branch 'upstream/2.2/develop' into feature/simplified-chinese
improve simplified-chinese language
Merge pull request #1971 from marju212/2.2/develop

2.2/develop
Merge pull request #1978 from brhale21/patch-2

Update system/cms/modules/settings/details.php
Bumped version numbers
Very minor formatting.
Adding multiple relationship support into streams_core if anyone needs it before the new streams nested tag syntax in 2.2.
Fixing a bug where the wrong ID could theoretically be passed as the entry ID to profile inputs.
Fixing integration issues with alt process field types in the user plugin.
Merge branch '2.1/develop' of github.com:pyrocms/pyrocms into release/2.1.5
Merge branch '2.2/develop' of https://github.com/pyrocms/pyrocms into 2.2/develop
merged from upstream/2.2/develop
Bumping version numbers.
Updated release date
Fixed conflict
Merge branch '2.1/develop' of github.com:pyrocms/pyrocms into 2.1/develop

Conflicts:
	system/cms/config/constants.php