Add file name encoding fix section in README
Update README.md
Add in setup.py for ArchLinux packaging
Fix the download speed problem.

https://github.com/houtianze/bypy/issues/61#issuecomment-49038559
Merge pull request #64 from seanlis/downspeed

Fix the download speed problem. (by @seanlis)
Change the default download chunk to 20M
Add the link for setting up UTF-8 environment
Update README.md
Assume the system encoding is UTF-8 if it can't be detected
Add warning when the system encoding can't be detected
Fix the setup.py script
Add argument --on-dup for specifying different duplicates handling
Minor display text update
Fix the No-Dowloading bug introduced in last commit; Fix some user messages
Add in symbol link following flag
Avoid unintentional file-overwrite-dir in upload; Fix move() function
Replace os.path.join() with my own implementation, hopefully can fix the Unicode errors in rare cases
Use dir separator conforming to the OS
Disable InsecureRequestWarning in rare case
instal: more standard, using setuptools since it's app

rather python modules.

Signed-off-by: Yixun Lan <dlan@gentoo.org>