temporary fix for display of all day events
write to the output file when provided

Reported-by: Joon Ro <joonhyoung.ro@gmail.com>
Signed-off-by: Aitor Soroa <a.soroa@gmail.com>
! take care of unnecessary escapes and newline for DESCRIPTION
Merge pull request #7 from joonro/feature/printing-description

! take care of unnecessary escapes and newline for DESCRIPTION
Merge branch 'master' of https://github.com/asoroa/ical2org.py