main
global: Add and use LIBDOVECOT_TEST_LIBS
COPYING: Simplify and standardize copyright handling
lib-compression: istream-decompress - Fix hangs when stream is used in asynchronous context
lib-compression: Added initial support for LZ4 There's no standard file format for LZ4, so we created our own. The code has had only minimal testing currently, so there may be bugs.
lib-compression: zstd - Check version
lib: istream - Make istreams declare the istreams they read
lib-compression: Remove xz/lzma read support
lib-compression: Add o_stream_create_deflate()