Add insecure option for TLS endpoints

This gives the option of disabling TLS certificate verification for
the server.

Closes #25

cli.go

@@ -11,6 +11,7 @@ import (
 	"net/http"
 	"net/http/cookiejar"
 	"net/url"
+	"crypto/tls"
 	"os"
 	"os/exec"
 	"runtime"
@@ -36,15 +37,26 @@ func New(opts map[string]interface{}) *Cli {
 	endpoint, _ := opts["endpoint"].(string)
 	url, _ := url.Parse(strings.TrimRight(endpoint, "/"))
 
+	transport := &http.Transport{
+		TLSClientConfig: &tls.Config{},
+	}
+	
 	if project, ok := opts["project"].(string); ok {
 		opts["project"] = strings.ToUpper(project)
 	}
+	
+	if insecureSkipVerify, ok := opts["insecure"].(bool); ok {
+		transport.TLSClientConfig.InsecureSkipVerify = insecureSkipVerify
+	}
 
 	cli := &Cli{
 		endpoint:   url,
 		opts:       opts,
 		cookieFile: fmt.Sprintf("%s/.jira.d/cookies.js", homedir),
-		ua:         &http.Client{Jar: cookieJar},
+		ua:         &http.Client{
+			Jar: cookieJar,
+			Transport: transport,
+		},
 	}
 
 	cli.ua.Jar.SetCookies(url, cli.loadCookies())

main/main.go

@@ -84,6 +84,7 @@ Usage:
 General Options:
   -b --browse         Open your browser to the Jira issue
   -e --endpoint=URI   URI to use for jira
+  -k --insecure       disable TLS certificate verification
   -h --help           Show this usage
   -t --template=FILE  Template file to use for output/editing
   -u --user=USER      Username to use for authenticaion (default: %s)
@@ -185,6 +186,7 @@ Command Options:
 		"editor=s":              setopt,
 		"u|user=s":              setopt,
 		"endpoint=s":            setopt,
+		"k|insecure":            setopt,
 		"t|template=s":          setopt,
 		"q|query=s":             setopt,
 		"p|project=s":           setopt,