- add an --insecure option as by default, SSL should always be used
 - add debug printing using better means that stderr printfs
 - fuse can log to syslog
 - write documentation
 - create read-only offline mode
 - allow to control disk cache size
 - replace atol and atoi with strtol with proper error checking
 - find permanent solution for --no-as-needed on Ubuntu
 - make buckets ordered so that queries and insertions can be done using bisection
 - make array of children of h_entry ordered for quicker member search
 - use __attribute__ ((warn_unused_result));
 - replace sizeof for key, name and hash with #define-ed values
 - use less realloc but instead only realloc to double the size when array gets full
 - store more efficient structure on disk (for example by making filenames zero terminated)
 - make h_entry more efficient in memory (for example by making filenames zero terminated)
 - when handling device/get_changes, make sure to only use the latest revision of the same file-/folderkey
 - allow different cache directory (useful for running test suite)
 - delete old files in cache that have been updated
 - delete patches in cache that have been applied
 - check the hash of all files in the cache on startup
 - after uploading a file it is immediately downloaded - instead, the existing local file should be used by checking the remote hash
 - add an option to only call device/get_status in configurable intervals
 - write man pages