v0.14.2

 * Fixed minimal dependency versions. (#507)
 * Add an option to write pragma once. (#511)
 * Fix submodule scanning for implicit Rust 2018 modules. (#512)
 * Fix dependency parsing / scanning to handle target-specific versions. (#513)
 * Use heck for case conversion. (#514)
 * Add support for verbatim content after includes. (#416)
 * Allow to add attributes to most generated functions. (#515)