v0.8.9

This is a maintenance release that fixes some important bugs.

Release Notes:

Fixed:

• Compilation error when calling core::call_dtor (58940f9)
• Docker warnings (58c2203)
• Deleting Is relationships not handled correctly (61e5764)
• Invalidate query cache when changing inheritance aka (Is,X) (05cb495, 1c73225)
• Don't copy EntityDesc during World::copy(_n) because names have to be unique (cad910e)
• Undefined behavior possible with SystemBuilder (906acf5)
• Unnecessary copy when calculating the query lookup hash (6de152e)
• query_sort_cond makes use of SortComponentCond (41a25c5)

Tweaked:

• Less memory consumed for entity->archetype mapping (d4de846)
• Simplified ANY compilation (d4de846)

Changed:

• Query serialization id counter no longer static (46aa9c7)
• Make sure RTTI an exceptions are disabled on all supported platforms (5c1a8fd)
• Replaced quom with amalgamate (831442b)
• compile_commands.json always generated in the given build directory and copied over to source folder (1c71def)

Added:

• Deleting queries from query cache (7497742)
• make_single_header vscode task for Windows (faa8f77)
• delegates, signal, sink (bfa4f50)
• Container::retain (bfa4f50)

Full Changelog: v0.8.8...v0.8.9