general: no INSERT delayed usage

* No longer uses INSERT DELAYED, since, beginning with MySQL 5.5.7,
  INSERT DELAYED is always handled as a simple INSERT (that is,
  without the DELAYED option) whenever the value of binlog_format is
  STATEMENT or MIXED. (In the latter case, the statement no longer
  triggers a switch to row-based logging, and so is logged using the
  statement-based format.)
  (closes #2268)

Signed-off-by: Samuele Kaplun <samuele.kaplun@cern.ch>
Reported-by: Thorsten Schwander <thorsten.schwander@gmail.com>
1: D400 First line should end with '.', not 'd'
1: D205 Blank line missing between one-line summary and description
4: I102 copyright year is outdated, expected 2014 but got 2012
34: D401 First line should be imperative: 'Return', not 'Returns'
49:1: E302 expected 2 blank lines, found 1
49: D401 First line should be imperative: 'Return', not 'Returns'
65:1: E302 expected 2 blank lines, found 1
65: D401 First line should be imperative: 'Return', not 'Returns'
65: D400 First line should end with '.', not 'e'
73:16: E225 missing whitespace around operator
78:1: E302 expected 2 blank lines, found 1
78: D401 First line should be imperative: 'Return', not 'Returns'
78: D400 First line should end with '.', not ','
78: D205 Blank line missing between one-line summary and description
87:16: E225 missing whitespace around operator
92:1: E302 expected 2 blank lines, found 1
92: D401 First line should be imperative: 'Return', not 'Returns'
104:1: E302 expected 2 blank lines, found 1
104: D401 First line should be imperative: 'Return', not 'Returns'
104: D400 First line should end with '.', not 'e'
112:16: E225 missing whitespace around operator
117:1: E302 expected 2 blank lines, found 1
117: D401 First line should be imperative: 'Return', not 'Returns'
129:1: E302 expected 2 blank lines, found 1
149: D401 First line should be imperative: 'Return', not 'Returns'
159:17: E225 missing whitespace around operator
162:16: E225 missing whitespace around operator
167:1: E302 expected 2 blank lines, found 1
187:1: E302 expected 2 blank lines, found 1
187: D401 First line should be imperative: 'Remove', not 'Removes'
187: D400 First line should end with '.', not "'"
206:1: E302 expected 2 blank lines, found 1
206: D401 First line should be imperative: 'Return', not 'Returns'
206: D202 No blank lines allowed *after* function docstring, found 1
206: D400 First line should end with '.', not 'e'
223:1: E302 expected 2 blank lines, found 1
223: D401 First line should be imperative: 'Set', not 'Sets'
223: D400 First line should end with '.', not 'e'
241:1: E302 expected 2 blank lines, found 1
241: D401 First line should be imperative: 'Return', not 'Returns'
241: D400 First line should end with '.', not 'e'
257:1: E302 expected 2 blank lines, found 1
257: D401 First line should be imperative: 'Set', not 'Sets'
257: D400 First line should end with '.', not 'e'
275:1: E302 expected 2 blank lines, found 1
275: D401 First line should be imperative: 'Return', not 'Returns'
275: D400 First line should end with '.', not 't'
275: D205 Blank line missing between one-line summary and description
289:12: E713 test for membership should be 'not in'
295:1: E302 expected 2 blank lines, found 1
295: D401 First line should be imperative: 'Return', not 'Returns'
295: D400 First line should end with '.', not 'e'
311:1: E302 expected 2 blank lines, found 1
311: D401 First line should be imperative: 'Set', not 'Sets'
311: D400 First line should end with '.', not 'e'
331: D401 First line should be imperative: 'Return', not 'Returns'
331: D400 First line should end with '.', not "'"
368:1: E302 expected 2 blank lines, found 1
368: D401 First line should be imperative: 'Set', not 'Sets'
368: D202 No blank lines allowed *after* function docstring, found 1
394:54: E261 at least two spaces before inline comment
396:15: E225 missing whitespace around operator
396:41: E225 missing whitespace around operator
406:1: E302 expected 2 blank lines, found 1
406: D400 First line should end with '.', not 't'
422:1: E302 expected 2 blank lines, found 1
422: D401 First line should be imperative: 'Return', not 'Returns'
422: D400 First line should end with '.', not "'"
422: D205 Blank line missing between one-line summary and description
437:29: E261 at least two spaces before inline comment
439:28: E261 at least two spaces before inline comment
453:1: E302 expected 2 blank lines, found 1
453: D401 First line should be imperative: 'Return', not 'Returns'
453: D400 First line should end with '.', not 'd'
453: D205 Blank line missing between one-line summary and description
467:29: E261 at least two spaces before inline comment
469:28: E261 at least two spaces before inline comment
479:1: E302 expected 2 blank lines, found 1
479: D103 Docstring missing