[REL] Preparing 6.12 release

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/6.x@46654 b456876b-0849-0410-b77d-98878d47e9d5
[REL] Update README file for 6.12

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/6.x@46655 b456876b-0849-0410-b77d-98878d47e9d5
[REL] Update changelog.txt for 6.12

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/6.x@46656 b456876b-0849-0410-b77d-98878d47e9d5
[REL] Update copyright.txt for 6.12

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/6.x@46657 b456876b-0849-0410-b77d-98878d47e9d5
[REL] SecDB for 6.12

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/6.x@46658 b456876b-0849-0410-b77d-98878d47e9d5
[REL] Closing release of 6.12

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/6.x@46662 b456876b-0849-0410-b77d-98878d47e9d5
[FIX][bp/r46812] Cleaner input handling

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/6.x@46816 b456876b-0849-0410-b77d-98878d47e9d5
[bp/r46811][SEC] Validate calendar date input. Prevent XSS attack

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/6.x@46829 b456876b-0849-0410-b77d-98878d47e9d5
[bp/r46608][FIX] order by must handle 1, which is the convertSortMode error return (probably related to r46575)

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/6.x@46870 b456876b-0849-0410-b77d-98878d47e9d5
dos2unix

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