Dynamic upload store
Support for Expect: continue
Last commit was broken, fixed it
Merge branch '2.2' into dyn_upload_store

Conflicts:
	ngx_http_upload_module.c
copy infrastructure for dynamic upload_state_store
fix issue #11 - "upload_state_store" configuration directive is not enforced
Merge pull request #37 from funny-falcon/dyn_upload_store

Merge wd-2.2 to 2.2 and fix #11 - make upload_state_path working
Fixed Content-Range parsing.

Start can be equal to end when sending one byte range and end cannot be equal to total.
Merge pull request #38 from vojtad/2.2

Fixed Content-Range parsing.
This should fix compatibility issue with new versions
Merge branch '2.2-merge' into 2.2