trurl 0.5

Changes since previous release

 o --get supports variables in [brackets] as well
 o --get {query-all:key} outputs all values for 'key' in the query
 o switched to test.py for tests
 o --iterate is a new option

Bugfixes since previous release

 o handle %00 sequences in {query:key} output
 o support reading URL from a file without a newline
 o bmake compatible makefile
 o fixed a json memory-leak
 o CI builds with the the clang address sanitizer

Contributors to this release:

  Dan Fandrich, Daniel Stenberg, Emanuele Torre, Håvard Bønes,
  Michael Ablassmeier, Nekobit
