Clean up assets from previous run during build.
Clean up assets from previous run during build.

jmptrader/promdash,thooams/promdash,thooams/promdash,juliusv/promdash,lborguetti/promdash,jmptrader/promdash,jmptrader/promdash,jonnenauha/promdash,prometheus/promdash,alonpeer/promdash,lborguetti/promdash,thooams/promdash,juliusv/promdash,juliusv/promdash,jonnenauha/promdash,jonnenauha/promdash,juliusv/promdash,jonnenauha/promdash,alonpeer/promdash,thooams/promdash,prometheus/promdash,prometheus/promdash,alonpeer/promdash,prometheus/promdash,lborguetti/promdash,jmptrader/promdash,lborguetti/promdash,alonpeer/promdash