[client] Fix a bug in merge.
update client version to 1.7.3
Remove extra license clause
[web] modified bg color of header/footer, modified header ui
[client] Fix a bug in merge.
[server] Improve repo size computation.

* Count file sizes instead of block sizes;
* Computer one repo size every second;
* Fix a memory bug.
Export service_url, and use urlparse to parse service_url
Merge branch 'master' of https://github.com/haiwen/seafile
Improve performance of recvfs-proc.
Improve log message for recvfs-proc.

Print message when it's checking many fs objects.
Remove mysql related code as we use libzdb
[controller] put all logs into <topdir>/logs/
[client] Skip file chunking errors.

Error on chunking a single file should not stop syncing.
Also ignores all files with pattern "~$*".
[client] log the right version of the client

- log the client version, not the code version
- also log the source commit id when building the client
[httpserver] return new ids in upload_api
[httpserver] fixed a memory leak
[client] also print the right version in deb/cli client
Added ajax file upload
Return json for ajax file upload.
[httpserver] add CORS header for each ajax post response