devel 6.x-1.27

Changes since 6.x-1.26:

• #1345240 by random720: Avoid breaking XHProf reporting when site name contains spaces.
• #1192362 by salvis: Avoid crashing when path to XHProf executable is bad.
• #1421882 by juampy: Allow the output of fn-view --pipe to be formatted for opening it with an editor
• #1163356 by jonathan1055: Add error handler option to display backtrace as well as standard message.
• #1049672 by Dmitriy.trt: Fix the disabling of the SMTP server in hook_disable().
• Fix ddebug_backtrace() and the traceback error handler.
• #1262694 by salvis: Make krumo string output pre-formatted. (cherry picked from commit e742103dedeea039f6f11e90059c39442e36391e)
• More robust switch user.
• #1257966, by brad.bulger: Fixed typo in watchdog() call in drupal_mail_wrapper().
• #1095306 by drzraf, salvis: Avoid a krumo crash.