Fix base64 encodeing if data is None or False for issue1272
(transplanted from a6942d2d9ea45d5b177b0efba376922f88187fd6)

--HG--
extra : transplant_source : %A6%94--%9E%A4%5D%5B%17%7B%0E%FB%A3v%92/%88%18%7F%D6
Fix base64 encodeing if data is None or False for issue1272
(transplanted from a6942d2d9ea45d5b177b0efba376922f88187fd6)

--HG--
extra : transplant_source : %A6%94--%9E%A4%5D%5B%17%7B%0E%FB%A3v%92/%88%18%7F%D6
Don't use now() in SQL statement as it doesn't work on SQLite
(transplanted from e732f5e84eafa84f51c21ec74080fe44ddf999a0)

--HG--
extra : transplant_source : %E72%F5%E8N%AF%A8OQ%C2%1E%C7%40%80%FED%DD%F9%99%A0
Use empty context for root user when validate records for issue1275
(transplanted from 71405f444b5eb5a135064565fd1c36fef554be6f)

--HG--
extra : transplant_source : q%40_DK%5E%B5%A15%06Ee%FD%1C6%FE%F5T%BEo
Use empty context for root user when validate records for issue1275
(transplanted from 71405f444b5eb5a135064565fd1c36fef554be6f)

--HG--
extra : transplant_source : q%40_DK%5E%B5%A15%06Ee%FD%1C6%FE%F5T%BEo
Prevent key error in BrowseRecord with big cache
(transplanted from 8df8b60998bbf08ecea8af0ca32c9e82b422ef03)

--HG--
extra : transplant_source : %8D%F8%B6%09%98%BB%F0%8E%CE%A8%AF%0C%A3%2C%9E%82%B4%22%EF%03
Fix search_read for issue1257
(transplanted from 24a71ddc78216eb0c4ad005b9addc90ab3d85684)

--HG--
extra : transplant_source : %24%A7%1D%DCx%21n%B0%C4%AD%00%5B%9A%DD%C9%0A%B3%D8V%84
Improve exception handling for issue1180
(transplanted from 8036d3f7ae9617efd44732cf96c1155106d9ab0c)

--HG--
extra : transplant_source : %806%D3%F7%AE%96%17%EF%D4G2%CF%96%C1%15Q%06%D9%AB%0C
Return value for displayname
(transplanted from 355b5b9f3df5103cc735ecad70eeaddb0ab6dc69)

--HG--
extra : transplant_source : 5%5B%5B%9F%3D%F5%10%3C%C75%EC%ADp%EE%AD%DB%0A%B6%DCi
Add access-control to DAV header
(transplanted from 6e197d54841633b9d6ce7e096f6584251b06d2c5)

--HG--
extra : transplant_source : n%19%7DT%84%163%B9%D6%CE%7E%09oe%84%25%1B%06%D2%C5
Add current-user-privilege-set to DAV props for iPhone
(transplanted from f0947321443470fff464f8652e09a41232924964)

--HG--
extra : transplant_source : %F0%94s%21D4p%FF%F4d%F8e.%09%A4%122%92Id
Add new methods to webdav CONFIG for upcomming version of pywebdav
(transplanted from bb463ca8bfb2e85c2b58d4ce8d45351c070c2cb4)

--HG--
extra : transplant_source : %BBF%3C%A8%BF%B2%E8%5C%2BX%D4%CE%8DE5%1C%07%0C%2C%B4
Add new methods to webdav CONFIG for upcomming version of pywebdav
(transplanted from bb463ca8bfb2e85c2b58d4ce8d45351c070c2cb4)

--HG--
extra : transplant_source : %BBF%3C%A8%BF%B2%E8%5C%2BX%D4%CE%8DE5%1C%07%0C%2C%B4
Add new methods to webdav CONFIG for upcomming version of pywebdav
(transplanted from bb463ca8bfb2e85c2b58d4ce8d45351c070c2cb4)

--HG--
extra : transplant_source : %BBF%3C%A8%BF%B2%E8%5C%2BX%D4%CE%8DE5%1C%07%0C%2C%B4
Prepare release 1.4.2
Added tag 1.4.2 for changeset adb88e158ef4
Increase version number
Prepare release 1.2.3
Added tag 1.2.3 for changeset 6a4c2e3ab757
Increase version number