v 1.2 -> v 1.2.1
Program didn't correctly work with filenames containing space. 
Bug found by Bartosz Szymanski <tyron@mat.uni.torun.pl>
v 1.2.1-> v 1.2.2
Fixed some bugs in 'download buffer' function.
v 1.2.2-> v 1.2.3
Fixed another bug in 'download buffer' found by Jaroslaw Nieweglowski
<janie@mat.uni.torun.pl>
v 1.2.3 -> v 1.2.4
Didn't work with empty lines in server response. Bug found by Stefan Marton
<shadow@algonet.se>