use sink name and command name for consule lock key

[amfern]

[josegonzalez]

Why this change?

[amfern]

I wanted to have different mixes of sinks for the same command, for example writing job changes to http and to mongo at the same time

[josegonzalez]

@jippi I'll leave merging/releasing to you :)

[amfern]

I do realize its a breaking change, but it think its a needed one

[jippi]

@amfern can you make it so it defaults to the current value, but you can override it by LOCK_NAME env variable?

[amfern]

yes

[amfern]

@jippi update the PR

[jippi]

Hi, this now has a merge conflict :)