Since 0.4:
    - Allow "y" for years of offset specification. Thanks to Bas ten Berge!

Since 0.3:
    - Support for FAKETIME_FMT environment variable. Thanks to Moreno Baricevic!

Since 0.2:
    - Intercept clock_gettime(). Thanks to Andreas Thienemann!

Since 0.1:
    - Fixed segfault when calling time(NULL). Thanks to Andres Ojamaa!
    - Added additional sanity checks.
    
