Issues discovered while working on a custom terraform deployment

[K-Kielak]

1. examples.tf hardcodes docker image version == 1.0.0 - it should instead be tied to actual framework version - see example.tf version number should be synchronized with the rest of the package #92
2. starting AWS quotas are too low to do anything useful - I guess no way around it, we should just make it clear in some of the READMEs (deployments and examples at least)
3. there is no information when workers fail to start (e.g., due to quotas) - the user should be able to easily see why certain invocations failed to execute
4. function size limits are reached very quickly - I tried passing 50x50 numpy matrix and it failed