Release 0.11.0

Created by: cmichi

Added

• Improve error output for wasm-opt interaction - #244
• Check optimized Wasm output file exists - #243
• Detect wasm-opt version compatibility and improve error messages - #242
• Detect version mismatches of parity-scale-codec in contract and ink! dependency - #237
• Support specifying optimization-passes in the release profile - #231
• Support specifying optimization-passes on the CLI - #216
• Use ink::test attribute in "new project" template - #190

Fixed

• Only allow new contract names beginning with an alphabetic character - #219
• Upgrade cargo-metadata and fix usages - #210