Added pgp (gpg) support by default (#447)

* mutt-wizard works on FreeBSD, also changed mbsync with isync (actual package name)

* Added pgp support

README.md

@@ -112,5 +112,5 @@ mutt-wizard is free/libre software, licensed under the GPLv3.
 
 ## To-do
 
-- Add ~~Mac OS~~/BSD compatibility (the script is confired to work for Mac OS now)
+- Add ~~Mac OS~~/~~BSD~~ compatibility (the script is confired to work for Mac OS and FreeBSD now)
 - ~~Out-of-the-box compatibility with Protonmail Bridge~~ (I believe this is done, but more bug-testing is welcome since I don't have PM)

bin/mw

@@ -7,7 +7,7 @@ command -V gpg >/dev/null 2>&1 && GPG="gpg" || GPG="gpg2"
         printf "\`pass\` must be installed and initialized to encrypt passwords.\\nBe sure it is installed and run \`pass init <yourgpgemail>\`.\\nIf you don't have a GPG public private key pair, run \`%s --full-gen-key\` first.\\n" "$GPG"
         exit
     }
-! command -v mbsync >/dev/null && printf "\`mbsync\` must be installed to run mutt-wizard.\\n" && exit
+! command -v mbsync >/dev/null && printf "\`mbsync (isync package)\` must be installed to run mutt-wizard.\\n" && exit
 
 prefix="/usr/local"
 muttdir="$HOME/.config/mutt"		# Main mutt config location
@@ -86,6 +86,9 @@ set folder = \"$maildir/$title\"
 set header_cache = $cachedir/$title/headers
 set message_cachedir = $cachedir/$title/bodies
 set mbox_type = Maildir
+set crypt_opportunistic_encrypt = yes
+set pgp_self_encrypt = yes
+set pgp_default_key  = $keyid
 
 bind index,pager gg noop
 bind index,pager g noop
@@ -108,6 +111,11 @@ set header_cache = $cachedir/$title/headers
 set message_cachedir = $cachedir/$title/bodies
 set imap_pass = \"\`pass mutt-wizard-$title\`\"
 
+set crypt_opportunistic_encrypt = yes
+set pgp_self_encrypt = yes
+set pgp_default_key  = $keyid
+
+
 set mbox_type = Maildir
 set ssl_starttls = yes
 set ssl_force_tls = yes
@@ -126,6 +134,7 @@ fi
 askinfo() { \
 	printf "Insert the \033[31memail address\033[0m that you want to autoconfigure for mutt/mbsync\\n\tEmail: \033[36m"
 	read -r fulladdr
+	keyid=$( gpg --list-keys --with-colons $fulladdr | awk -F: '/^pub:/ { print $5 }')
 	printf "\033[0m"
 	while ! echo "$fulladdr" | grep "$emailre" >/dev/null; do
 		printf "That is not a valid \033[31memail address\033[0m, please retype the desired email.\\n\\nEmail: \033[36m\t"