Flecs 1.1

This version includes the following features:

• Add API for bulk insertion of data (#60)
• Add API for bulk deletion (#33)
• Add API for bulk add/remove (#67)

This version includes the following improvements:

• Allow for direct access to table columns in systems (#59)
• Remove compiler warnings in strict mode (#70)
• Make EcsOnLoad phase unstaged, allowing for faster insertion of data (#74)
• Add optional example, improve documentation

This version includes the following bugfixes:

• Fix crash when calling ecs_quit from worker thread (#61)
• Fix crash when calling ecs_new_w_count from worker thread (#61)
• Fix crash when dimensioning table with columns that have size 0 (#60)
• Fix bug where on some platforms the OS API struct was stored in RO memory, causing a crash (#68)
• Fix bug when _ecs_field is called with a 0 size (#75)
• Fix bug when creating a system that only has an OWNED or SHARED column (#78)