[ENH] Cleaner log files with log() function
[ENH] Moved more variables into tim-common
[ENH] Report reason why instance is locked
[ENH] Fail relentlessly on install errors and set instance to 'install failed'
[FIX] Typos


git-svn-id: file:///var/local/code.tiki.org/tikisvn/trunk@48124 b456876b-0849-0410-b77d-98878d47e9d5