Update README.

Removed links to outdated btcsuite MSIs, replacing these with links to
Github releases.

Combined installation and updating instructions since they are
identical.

Added Windows to the list of operating systems that the "Build from
source" instructions work with.

Added PowerShell examples for copying the sample btcd and btcwallet
configs for both MSI and source installs.

README.md

@@ -46,82 +46,74 @@ adding `mainnet=1` to the configuration file.  Mainnet will be enabled
 by default in a future release after further database changes and
 testing.
 
-## Installation
+## Installation and updating
 
-### Windows - MSI Available
+### Windows - MSIs Available
 
-Install the btcd suite MSI here:
+Install the latest MSIs available here:
 
-https://opensource.conformal.com/packages/windows/btcdsuite/
+https://github.com/btcsuite/btcd/releases
 
-### Linux/BSD/POSIX - Build from Source
+https://github.com/btcsuite/btcwallet/releases
 
-- Install Go according to the installation instructions here:
-  http://golang.org/doc/install
+### Windows/Linux/BSD/POSIX - Build from source
 
-- Run the following commands to obtain and install btcwallet and all
-  dependencies:
-```bash
-$ go get -u -v github.com/btcsuite/btcd/...
-$ go get -u -v github.com/btcsuite/btcwallet/...
-```
-
-- btcd and btcwallet will now be installed in either ```$GOROOT/bin``` or
-  ```$GOPATH/bin``` depending on your configuration.  If you did not already
-  add to your system path during the installation, we recommend you do so now.
-
-## Updating
-
-### Windows
-
-Install a newer btcd suite MSI here:
-
-https://opensource.conformal.com/packages/windows/btcdsuite/
+- If necessary, install Go according to the installation instructions
+  here: http://golang.org/doc/install.  It is recommended to add
+  `$GOPATH/bin` to your `PATH` at this point.
 
-### Linux/BSD/POSIX - Build from Source
-
-- Run the following commands to update btcwallet, all dependencies, and install it:
-
-```bash
-$ go get -u -v github.com/btcsuite/btcd/...
-$ go get -u -v github.com/btcsuite/btcwallet/...
+- Run the following commands to obtain and install btcd, btcwallet
+  and all dependencies:
+```
+go get -u -v github.com/btcsuite/btcd/...
+go get -u -v github.com/btcsuite/btcwallet/...
 ```
 
 ## Getting Started
 
-The follow instructions detail how to get started with btcwallet
-connecting to a localhost btcd.
-
-### Windows (Installed from MSI)
-
-Open ```Btcd Suite``` from the ```Btcd Suite``` menu in the Start
-Menu.  This will also open btcgui, which can be closed if you only
-want btcd and btcwallet running.
-
-### Linux/BSD/POSIX/Source
+The following instructions detail how to get started with btcwallet
+connecting to a localhost btcd.  Commands should be run in `cmd.exe`
+or PowerShell on Windows, or any terminal emulator on *nix.
 
 - Run the following command to start btcd:
 
-```bash
-$ btcd --testnet -u rpcuser -P rpcpass
+```
+btcd --testnet -u rpcuser -P rpcpass
 ```
 
 - Run the following command to create a wallet:
 
-```bash
-$ btcwallet -u rpcuser -P rpcpass --create
+```
+btcwallet -u rpcuser -P rpcpass --create
 ```
 
 - Run the following command to start btcwallet:
 
-```bash
-$ btcwallet -u rpcuser -P rpcpass
+```
+btcwallet -u rpcuser -P rpcpass
 ```
 
 If everything appears to be working, it is recommended at this point to
 copy the sample btcd and btcwallet configurations and update with your
 RPC username and password.
 
+PowerShell (Installed from MSI):
+```
+PS> cp "$env:ProgramFiles\Btcd Suite\Btcd\sample-btcd.conf" $env:LOCALAPPDATA\Btcd\btcd.conf
+PS> cp "$env:ProgramFiles\Btcd Suite\Btcwallet\sample-btcwallet.conf" $env:LOCALAPPDATA\Btcwallet\btcwallet.conf
+PS> $editor $env:LOCALAPPDATA\Btcd\btcd.conf
+PS> $editor $env:LOCALAPPDATA\Btcwallet\btcwallet.conf
+```
+
+PowerShell (Installed from source):
+```
+PS> cp $env:GOPATH\src\github.com\btcsuite\btcd\sample-btcd.conf $env:LOCALAPPDATA\Btcd\btcd.conf
+PS> cp $env:GOPATH\src\github.com\btcsuite\btcwallet\sample-btcwallet.conf $env:LOCALAPPDATA\Btcwallet\btcwallet.conf
+PS> $editor $env:LOCALAPPDATA\Btcd\btcd.conf
+PS> $editor $env:LOCALAPPDATA\Btcwallet\btcwallet.conf
+```
+
+Linux/BSD/POSIX (Installed from source):
 ```bash
 $ cp $GOPATH/src/github.com/btcsuite/btcd/sample-btcd.conf ~/.btcd/btcd.conf
 $ cp $GOPATH/src/github.com/btcsuite/btcwallet/sample-btcwallet.conf ~/.btcwallet/btcwallet.conf