Problem 1
- Installation request for birgir/geo-query ^0.0.6 -> satisfiable by birgir/geo-query[0.0.6].
- birgir/geo-query 0.0.6 requires composer/installers ~1.0.0 -> satisfiable by composer/installers[1.0.x-dev, v1.0.0, v1.0.1, v1.0.10, v1.0.11, v1.0.12, v1.0.13, v1.0.14, v1.0.15, v1.0.16, v1.0.17, v1.0.18, v1.0.19, v1.0.2, v1.0.20, v1.0.21, v1.0.22, v1.0.23, v1.0.24, v1.0.25, v1.0.3, v1.0.4, v1.0.5, v1.0.6, v1.0.7, v1.0.8, v1.0.9] but these conflict with your requirements or minimum-stability.
Does it really mean that geo-query requires composer/installers that's not newer than ~1.0.0? Or is it just an oversight in the composer.json file? I suppose that it's safe to upgrade that dependency.