depositfiles (probe): don't use javascript engine

Credits go to joejob357.
Fixes issue 1028.
hotfile (download): fix, upstream changed
uploaded.net (premium download): add traffic limit case

Credits go to joejob357.
Fixed issue 1025.
uploaded.net (upload): add sanity check

Fixes issue 1026.
bayimg: cosmectics, minor
nowdownload.co: new module with anonymous download and upload

Fixes issue 1029
nowdownload.co (download): typo fix

+ add probe %f
hotfile: drop module

+ fix dead hosters examples in docs
billionuploads: fix, upstream changed

Fixes issue 1033.
zippyshare (download): fix (for files without captcha), upstream modified

Fixes issue 1035.
plowdown: detect (simple) redirection services

For example:
http://8bbd5066.redir.com/url/http://www.hoster.com/file/921AFF48
plowdown: fix, deal correctly with unresolved host error
bayfiles (download, probe): better dead link detection
download.sh (mark_queue): fix, unwanted newline for empty FILENAME

Bug was introduced in commit
download.sh (mark_queue): fix bug when filename contains an ampersand (&)
revision 0b261c1470357a367632bc280437ebe478fa4ab0
bayfiles (download, probe): fix filenames (translate HTML entities)
putlocker (upload): check for temporarily disabled uploads
mediafire (upload): reimplement remote upload using API

Note: The API does not provide a convenient way to track a remote
upload's progress. Therefore only asynchronous remote uploads are
possible at this time.
uptobox (upload): fix, upstream changed

Also minor restructuring to avoid pipe errors (141).
uptobox (download): fix/rewrite, upstream changed
uptobox (download): fix parsing of enforced wait time

regression introduced in 6d96cb52b3e45bfd364f8203170f92c9eefce9f8