refactor entity fetch_rql method to use a RQL syntax tree instead of RQL strings ; closes #1585650

[doc] add some documentation in cubicweb.web.action

[test] fix bad sed

[deprecation] fix unittest pending deprecation warnings on failIf/failUnless methods family

[test] fix test subsquently to localperms introduction

[deprecation] specify name/doc to deprecated else it's fetched from the object, which has then to be importable. Cleanup debian/control dependancy on the way (needs lgc 0.56.3 api)

[debian] fix init script dependencies (closes #1921729) Facility names starting with $ are reserved system facilities. Other scripts can be referred to using the facility name listed in Provides directly.

[server] portable dump format supports now ZIP64 extensions by default (closes #1912535) ZIP files can use the ZIP64 extensions when the zipfile is larger than 2 GB. zipfile will raise an exception when the ZIP file would require ZIP64 extensions. Note: ZIP64 extensions are disabled by default in stdlib because the default zip and unzip commands on Unix (the InfoZIP utilities) don’t support these extensions.

[repo] use smarter query to check asource presence on startup (closes #1922099)

[js] closes #1558870 : update to jquery 1.6 (1.6.3)