#3 Fix to support bzip2 1.0.4 in deltup

[Pavel Plesov]

deltup currently (deltup-0.4.3_pre2) does not support bzip2 version 1.0.4 (released 20 December 2006).

This results in unable to find any compressor differ from bzip2_old (which contributed with deltup) by find_bzip2_compressors() function.

Please add the code to support of bzip2 1.0.4 ASAP.

Please find the patch attached to this request.

Thank you in advance.

[Pavel Plesov]

Patch to add code to support bzip2 1.0.4