Merge branch 'master' into v0.5.0

* master:
  Fix yum changelog option (#543)
  Update README.md (#542)
  Fix false positive: ignore oval info when kernel major version is different. (#541)
  Fix: Misdetection of OvalMatch for CentOS and Scientific in oval/util.go (#536)
  Fix: "Reboot Required" detection process in scan/redhat.go (#534)
  Remove README.fr.md because unable to maintenance..
  README Typo Update (#538)
  Insert `sudo` only at the beginning of command in deep scan #495 (#539)
  Fix config.toml validation (#537)
  Add pseudo server type for non-ssh scanning (only cpe scan) #512 (#531)
  README Update (#530)
  Update README
  send slack msg by api (#525)
  fix typo Privious -> Previous (#523)
  Fix package query fails on debian based container (#519) (#522)
  fix typo from "enviroment" to "environment" (#518)
  Fix typo in config/jsonloader.go (#517)
  Modified Spell Miss of "README.md". (#516)
  Fix .goreleaser.yml
  Fix a bug of making channels when fill oval information via HTTP (#514)

.goreleaser.yml

@@ -6,15 +6,8 @@ release:
 builds:
 - goos:
   - linux
-  - freebsd
   goarch:
-  - "386"
   - amd64
-  - arm
-  - arm64
-  goarm:
-  - "6"
-  - "7"
   main: .
   ldflags: -s -w -X main.version={{.Version}} -X main.revision={{.Commit}}
   binary: vuls