v2.0

Changelog

747ef71 tidy go.mod
a389809 Update docs for ec2 connect
d892194 clarify some errors
5f3f705 Dynamically generate ssh config for ec2 connect if instance id is provided
b07cebe reworked ec2 connect to use cache
99c139b Refer to ProxyJump by instance id
137dcab Move sorter functions to util.go
edc3aca Allow env-var based configuration and update docs
130f120 Up the Go version to 1.16
9d4c15b Move most of the instance parsing login into lib/aws.go
a0c80b7 improve debug logging a bit
cdcba04 remove sync.Mutex from ProfileSummary as it's not used
c762c65 reconf: sort instances in ssh config by name
4c6fb67 Add some tests to reconf
03fbd6c Refactor reconf to include Names as all aliases
518bbfe Move ec2connect to a separate library