Use goreleaser to build and release (#244)

Instead of using gox on one side and an action to release, we can merge
them together with goreleaser which will build for extra targets (arm,
mips if needed in the future) and it also takes care of creating
checksums, a source archive, and a changelog and creating a release with
all the artifacts.

All binaries should respect the old naming convention, so any scripts
out there should still work.

Signed-off-by: Itxaka <igarcia@suse.com>

vendor/github.com/Masterminds/goutils/cryptorandomstringutils.go

@@ -21,7 +21,6 @@ import (
 	"fmt"
 	"math"
 	"math/big"
-	"regexp"
 	"unicode"
 )
 
@@ -99,27 +98,7 @@ Returns:
 	error - an error stemming from an invalid parameter within underlying function, CryptoRandom(...)
 */
 func CryptoRandomAlphaNumeric(count int) (string, error) {
-	if count == 0 {
-		return "", nil
-	}
-	RandomString, err := CryptoRandom(count, 0, 0, true, true)
-	if err != nil {
-		return "", fmt.Errorf("Error: %s", err)
-	}
-	match, err := regexp.MatchString("([0-9]+)", RandomString)
-	if err != nil {
-		panic(err)
-	}
-
-	if !match {
-		//Get the position between 0 and the length of the string-1  to insert a random number
-		position := getCryptoRandomInt(count)
-		//Insert a random number between [0-9] in the position
-		RandomString = RandomString[:position] + string('0' + getCryptoRandomInt(10)) + RandomString[position + 1:]
-		return RandomString, err
-	}
-	return RandomString, err
-
+	return CryptoRandom(count, 0, 0, true, true)
 }
 
 /*
@@ -204,7 +183,7 @@ func CryptoRandom(count int, start int, end int, letters bool, numbers bool, cha
 		if chars == nil {
 			ch = rune(getCryptoRandomInt(gap) + int64(start))
 		} else {
-			ch = chars[getCryptoRandomInt(gap) + int64(start)]
+			ch = chars[getCryptoRandomInt(gap)+int64(start)]
 		}
 
 		if letters && unicode.IsLetter(ch) || numbers && unicode.IsDigit(ch) || !letters && !numbers {