v0.9.0-pre16

COMMON: Fixed memory leak in sail_copy_meta_data_node()
COMMON: Remove redundant SAIL_CHECK_XXX_NULL_PTR macro
COMMON: Update error macro docs
DOC: Update docs on SAIL_THIRD_PARTY_CODECS with ';'
GIF: Fixed memory leak in saving meta data
LIBSAIL: Allow multiple ';'-separated paths in SAIL_THIRD_PARTY_CODECS_PATH #108
LIBSAIL: Improve stability of split_into_string_node_chain()
SAIL: Added target name in ASAN enabled message
SAIL: Rename SAIL_THIRD_PARTY_CODECS macro to SAIL_THIRD_PARTY_CODECS_PATH