1fichier (download): fix, upstream modified

Credits go to gm.ebeaumont.
Fixes issue 1076.
core.sh (service_9kweu_ready): increase balance threshold

5 credits is the minimum price. 10 credits is the maximum.
zippyshare (download): more general JS snippet

Credits go to roadman17
See also https://code.google.com/p/plowshare/source/detail?r=58179798456be43eb6b0094e5d6135eb5ee4ab91
README: updates examples

plowup --name-prefix switch has been droppped
(see revision be9364a187fe4982fd4bf2df1654f83db8ebeee1)

We now use --name
zippyshare (download): Fix, upstream changed

Thanks to phunky.bob for original patch.
See also issue 1080
keep2share: new module with upload (account only)

It uses offcial v1 API.
No folder management yet.

See issue 1050.
cloudzer_net: drop module

Service discontinued since the 17th of February 2014.
filebox: drop module

Closes issue 1079.
Makefile: small rework

Changes:
- add patch_gnused rule for BSD uers
- drop old setup.sh
- fix makefile dependencies
- update documentation

Plowhsare does not work with BSD sed, you must have GNU sed installed.
1fichier (download): fix, upstream modified

Closes issue 1077.
Makefile: fix bash completion location

Since version 2.0 of bash-completion, the standard one changed:
"/etc/bash_completion.d" -> "/usr/share/bash-completion/completions"
firedrive (download): Fix parsing of file name and final URL + cosmetics