zippyshare (download): fix links without captchas

Concerns small files only.

Fixes 904.
nakido: new module with anonymous download
mediafire (extract_id): fix file/folder parsing in "probe mode"

regression introduced in c17dc9a92c62d576092d5d65ae1f0d89bd3b3b8a
mediafire (list): add support for chunks

Use of chunks enables complete file/subfolder
listing when there are more then 100.

Credits go to xinul.vbp for the original patch.
See also issue 933
core.sh (basename_url): also accept 'ftp' and 'file' protocols

Note: file:// is useful for (experimental) mega module
mediafire (extract_id): improve parsing of file/folder ID

- use Bash 'case' to determine URL type to save 'parse' calls
- consider new folder URL format
upstore: new module with anonymous download
upstore: add probe support
upstore: add support for anonymous upload
upstore: add support for free account
nakido (anonymous download): resume is not available

+ fix proper output filename
docs (README): add 1 more plowprobe usage + cosmetics
fileover: new module with anonymous download
180upload (anonymous download): fix, add solvemedia support
nakido: add basic probe support