Log Message:
Update to 3.5.27

* Use Makefile.common for common stuff.

Changelog:
NEW IN VERSION 3.5.27
------------------------
- simplified configuration scripts
- deadlock fixes
- miniexp under win32 uses tlsalloc instead of _thread vars (pb under xp)

NEW IN VERSION 3.5.26
------------------------
- Thread safe miniexp
- Now using the standard autotools approach (thanks to Vincent Torri).
- New windows installer (thanks to Konstantin Kravtsov).
- Fixed Russian code page issues in windows.
- General speedup thanks to lock-free smart pointers.
- ddjvu can produce one file per page.
- djvused can now set the default page orientation.
- Bug fixes all around.