Add MANPAGE.md and MANPAGE-render.bash

MANPAGE-render.bash renders the markdown to a proper man(1) manpage

.gitignore

@@ -1,4 +1,4 @@
-# binary
+# the gocryptfs executable
 /gocryptfs
 
 # temporary files created by the tests
@@ -6,3 +6,6 @@
 
 # binary releases
 /*.tar.gz
+
+# manpage generated by MANPAGE-render.bash
+/gocryptfs.1

MANPAGE-render.bash

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+set -eux
+
+# Render MANPAGE.md to a proper man(1) manpage
+
+pandoc MANPAGE.md -s -t man -o gocryptfs.1 && man ./gocryptfs.1

MANPAGE.md

@@ -0,0 +1,71 @@
+% GOCRYPTFS(1)
+% github.com/rfjakob
+% Nov 2015
+
+NAME
+====
+
+gocryptfs - mount and encrypted directory
+
+SYNOPSIS
+========
+
+Initialize encrypted filesystem
+-------------------------------
+
+gocryptfs -init [OPTIONS] CIPHERDIR
+
+Mount
+-----
+
+gocryptfs [OPTIONS] CIPHERDIR MOUNTPOINT
+
+Change password
+---------------
+
+gocryptfs -passwd CIPHERDIR
+
+DESCRIPTION
+===========
+
+Options:
+
+**-cpuprofile string**
+:	Write cpu profile to specified file
+
+**-debug**
+:	Enable debug output
+
+**-f**
+:	Stay in the foreground
+
+**-fusedebug**
+:	Enable fuse library debug output
+
+**-init**
+:	Initialize encrypted directory
+
+**-masterkey string**
+:	Mount with explicit master key
+
+**-notifypid int**
+:	Send USR1 to the specified process after successful mount - used internally for daemonization
+
+**-openssl bool**
+:	Use OpenSSL instead of built-in Go crypto (default true)
+
+**-passwd**
+:	Change password
+
+**-plaintextnames**
+:	Do not encrypt file names - can only be used together with -init
+
+**-q**
+:	Quiet - silence informational messages
+
+**-version**
+:	Print version and exit
+
+**-zerokey**
+:	Use all-zero dummy master key
+

USAGE.txt

@@ -1,24 +0,0 @@
-Usage: gocryptfs [OPTIONS] CIPHERDIR MOUNTPOINT
-
-Options:
-  -cpuprofile string
-    	Write cpu profile to specified file
-  -debug
-    	Enable debug output
-  -f	Stay in the foreground
-  -fusedebug
-    	Enable fuse library debug output
-  -init
-    	Initialize encrypted directory
-  -masterkey string
-    	Mount with explicit master key
-  -openssl
-    	Use OpenSSL instead of built-in Go crypto (default true)
-  -passwd
-    	Change password
-  -plaintextnames
-    	Do not encrypt file names - can only be used together with -init
-  -version
-    	Print version and exit
-  -zerokey
-    	Use all-zero dummy master key