Fix all punctuation lint warnings

metadata/com.ecuamobi.deckwallet.txt

@@ -5,7 +5,7 @@ Source Code:https://github.com/ecuamobi/deck-wallet
 Issue Tracker:https://github.com/ecuamobi/deck-wallet/issues
 
 Auto Name:Deck Wallet
-Summary:Store your Bitcoins in a deck of cards.
+Summary:Store your Bitcoins in a deck of cards
 Description:
 Allows you to generate up to 52 bitcoin addresses by entering
 the order of a deck of cards plus an optional password.

metadata/com.fr3ts0n.stagefever.txt

@@ -5,7 +5,7 @@ Source Code:https://github.com/fr3ts0n/StageFever
 Issue Tracker:https://github.com/fr3ts0n/StageFever/issues
 
 Auto Name:StageFever
-Summary:Display stage notes, AMP/effect settings etc.
+Summary:Display stage notes, AMP/effect settings etc
 Description:
 Shows stage notes, AMP/effect settings, BPM etc. for any song in setlist. A
 setlist is a csv file following the scheme:

metadata/com.github.xloem.qrstream.txt

@@ -5,7 +5,7 @@ Source Code:https://github.com/xloem/qrstream
 Issue Tracker:https://github.com/xloem/qrstream/issues
 
 Auto Name:QRStream
-Summary:Transfer files and text via successive QR codes.
+Summary:Transfer files and text via successive QR codes
 Description:
 QRStream's intent is to provide for communication with a device without using
 the radios or USB port.  This can be very useful in a handful of obscure

metadata/com.nononsenseapps.notepad.txt

@@ -8,7 +8,7 @@ Bitcoin:16DUL1X4yARfM88GN7TV6Y3wQwqrstJs7A
 
 Name:NoNonsense Notes
 Auto Name:Notes
-Summary:Notepad and todo app with sync support.
+Summary:Notepad and todo app with sync support
 Description:
 Notepad and todo list app with a modern look.
 .

metadata/com.platypus.dicer.txt

@@ -5,7 +5,7 @@ Source Code:https://gitlab.com/kas70/Dicer/tree/HEAD
 Issue Tracker:https://gitlab.com/kas70/Dicer/issues
 
 Auto Name:Dicer
-Summary:Roll dice.
+Summary:Roll dice
 Description:
 Roll dice on your phone.
 .

metadata/it.reyboz.bustorino.txt

@@ -7,7 +7,7 @@ Donate:https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=V4KH
 Bitcoin:16oHee3jeENnN6fPxFq6LpNP6SZG9rimRD
 
 Auto Name:BusTO
-Summary:Arrival times for Turin public transports.
+Summary:Arrival times for Turin public transports
 Description:
 BusTO gives you arrival times for all public transport in Turin and its outskirts.
 Type in the number of the bus stop and get all the information about scheduled and

metadata/org.sufficientlysecure.keychain.txt

@@ -6,7 +6,7 @@ Issue Tracker:https://github.com/open-keychain/open-keychain/issues
 Changelog:https://github.com/open-keychain/open-keychain/blob/HEAD/OpenKeychain/src/main/res/raw/help_changelog.md
 
 Auto Name:"OpenKeychain"
-Summary:Encrypt files and communications with OpenPGP.
+Summary:Encrypt files and communications with OpenPGP
 Description:
 OpenKeychain helps you communicate more privately and securely. It uses
 high-quality modern encryption to ensure that your messages can be read

metadata/se.traffar.dot_race.txt

@@ -5,7 +5,7 @@ Source Code:https://bitbucket.org/przemekr/dot-race/src
 Issue Tracker:https://bitbucket.org/przemekr/dot-race/issues
 
 Auto Name:Dot-Race
-Summary:Simple, funny action game.
+Summary:Simple, funny action game
 Description:
 Dot race is simple, but funny and fast action game. Take a control of your
 spaceship and compete with computer or an other player in collecting magic

metadata/tof.cv.mpp.txt

@@ -6,7 +6,7 @@ Issue Tracker:https://github.com/iRail/BeTrains-for-Android/issues
 
 Name:BeTrains NMBS/SNCB belgium
 Auto Name:BeTrains
-Summary:Provides Belgian train times.
+Summary:Provides Belgian train times
 Description:
 BeTrains is a useful (non-official NMBS/SNCB) tool for people travelling by Train in Belgium.
 A perfect match between a simple application of route planner and timetables,