Adding upstream version 1.0.2.

Signed-off-by: Daniel Baumann <daniel@debian.org>

testdata/emails/signatures.txt

@@ -0,0 +1,33 @@
+This email was sent from way too much different devices ;)
+
+Envoyé depuis mon iPhone
+
+Von meinem Mobilgerät gesendet
+Diese Nachricht wurde von meinem Android-Mobiltelefon mit K-9 Mail gesendet.
+
+Someone from mobile
+From My Iphone 6
+Sent via mobile
+Sent with Airmail
+Sent from Windows Mail
+Sent from Mailbox
+Sent from Mailbox for iPad
+Sent from Yahoo Mail on Android
+Sent from my TI-85
+Sent from my iPhone
+Sent from my iPod
+Sent from my Alcatel Flash2
+Sent from my mobile device
+Sent from my cell, please excuse any typos.
+Sent from my Samsung Galaxy s5 Octacore device
+Sent from my HTC M8 Android phone.  Please excuse typoze
+Sent from my Windows 8 PC <http://windows.microsoft.com/consumer-preview>
+<<sent by galaxy>>
+(sent from a phone)
+(Sent from mobile device)
+從我的 iPhone 傳送
+Sent from [mail](https://go.microsoft.com/fwlink/?LinkId=550986) for windows 10
+Verzonden met BlackBerry Work
+
+Get Outlook for iOShttps://aka.ms/o0ukef
+Get [Outlook for Android](https://aka.ms/ghei36)