thefilebay.com: new module

Closes issue 1124.
turbobit (upload): use official API

Credits go to pretrine.
Closes issue 1176.
uptobox (download): fix mutiple downloads
filepup_net (download): fix, website updated
filepup_net (download): quick fix

Seems to be present for all links ???
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filepup_net (download): quick fix

Website updated (again).
shareonline_biz (login, download): check premium account errors

Also remove pipes to avoid SIGPIPE issues
firedrive: deal correctly with direct links
plowdown: clean all files when --cache=session
zippyshare (download): upstream updated

Closes issue 1201.
uploading.com: fix, upstream modified

Fixes issue 1190.
zippyshare (download): upstream updated

Closes issue 1205.
1fichier (download): handle correctly premium download

Fixes issue 1188.
letitbit (upload): Rewrite to use the (new) panel interface

Fixes issue 1198.
letitbit (upload): add support for folders

Fixes issue 1137
thefilebay: minor, missing MODULE_THEFILEBAY_PROBE_OPTIONS
180upload: minor, missing FILE_SIZE declaration
filecore.co.nz: new module

Anonymous & free account download + Probe
Bash 4.2 or better support \uNNNN and \UNNNNNNNN escape sequences. It has no effect for Bash 4.1 users.

Credits go to pretrine.
Closes issue 1209.
plowdown (pretty_check): avoid a subshell