v1.5.0

• Added code-signing.
• Added note after successful clink update to clarify that the update will take effect in new Clink windows.
• Fixed order of running the autostart script (from the clink.autostart setting) vs loading Lua; the autostart script should run before Lua so that Lua scripts can query environment variables set by it. Otherwise Lua scripts may behave differently on initial load versus after invoking the clink-reload command (e.g. Ctrl-X,Ctrl-R).
• Fixed precedence of match colors; readonly should be lower precedence than executable.
• Fixed #469; incorrect usage of memset().