the time being, by rolling back transactions automatically if there is one
and it has failed.

has a bit more overhead now but they're handled much nicer. Exception
and MaharaException should now NEVER be thrown directly

useful for (for example) exceptions thrown on param_* with no default

errors properly

smarty where available.

  * Re-organised the file a bit, to better logically group some stuff
  * Renamed the log_dbg function to log_debug
  * Added a third parameter to the logging functions to say whether a
    backtrace is required.
  * Fixed up projectname in default exception handler.

redirect to the installer happening.

"Improved" the default exception handler message.
Added two functions to end the page with a notice, one for errors and one
for information. The error one may not be necessary if exceptions can
handle it.

so it can be plainly seen.

at.

support to the default exception handler for passing its backtrace through
to be displayed, and also passing the correct file/line numbers, which
makes them far easier to track down.

script name when logging if the script is actually in the docroot.

escaped or not, and made the default true. This allows some messages to
have HTML in them if required.