New peppy release

[Rob McMullen]

Finally released an update. Lots of little bug fixes and a few minor
enhancements. From the changelog:

* added detection of bad layout.dat file (bug #847)
* correct major mode found when multiple extensions match (bug #844)
* changed process manager to use threads (bug #842)
* fixed improperly closed sidebar/springtab instances (bug #841)
* added improvements to Fortran 77 autoindenter
* fixed regression in revert file (bug #839)
* fixed bug in Replace All (bug #833)
* added detection of unicode byte order marks (bug #835)
* fixed spell checker to handle English contractions (bug #781)
* 'find' and 'replace with' fields can now be swapped (bug #845)
* fixed error on shutdown when minibuffer open (bug #850)
* minor keybinding major mode fixes (bugs #731, #754, #852)