Documenting that json.load may raise a ValueError.

Issue #18680: JSONDecoder should document that it raises a ValueError
  for malformed data
Documenting that json.load may raise a ValueError.

Issue #18680: JSONDecoder should document that it raises a ValueError
  for malformed data
Documenting that json.load may raise a ValueError.

Issue #18680: JSONDecoder should document that it raises a ValueError
  for malformed data
Documenting that json.load may raise a ValueError.

Issue #18680: JSONDecoder should document that it raises a ValueError
  for malformed data
Increasing test coverage of ftplib. Patch by Muhammad Jehanzeb
merge from 3.3

Increasing test coverage of ftplib. Patch by Muhammad Jehanzeb
Issue 18724: Fix typo noticed by Susan Tan.
Issue 18724: Fix typo noticed by Susan Tan.
#18687: remove obsolete comment.  Patch by F?vry Thibault.
#18687: merge with 3.3.
Issue #18722: Remove uses of the "register" keyword in C code.
Remove duplicate text in 3.4 what's new (my bad)