add FAQ

FAQ.md

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+#### Getting LBRY for development
+
+Q: How do I get lbry for command line?
+
+A: In order to run lbry from command line, you need more than the packaged app/deb.
+
+######On OS X
+
+You can install LBRY command line by running `curl -sL https://rawgit.com/lbryio/lbry-setup/master/lbry_setup_osx.sh | sudo bash` in a terminal. This script will install lbrynet and its dependancies, as well as the app.
+
+######On Linux
+
+On Ubuntu or Mint you can install the prerequisites and lbrynet by running
+
+    sudo apt-get install libgmp3-dev build-essential python2.7 python2.7-dev python-pip
+    git clone https://github.com/lbryio/lbry.git
+    cd lbry
+    sudo python setup.py install
+
+#### Using LBRY
+
+Q: How do I run lbry from command line?
+
+A: The command is `lbrynet-daemon`
+
+***********
+
+Q: How do I stop lbry from the command line?
+
+A: You can ctrl-c or run `stop-lbrynet-daemon`
+
+***********
+
+Q: How do I run lbry with lbrycrdd (the blockchain node application)?
+
+A: Start lbry with the --wallet flag set: `lbrynet-daemon --wallet=lbrycrd`
+
+Note: when you change the wallet it is persistant until you specify you want to use another wallet - lbryum - with the --wallet flag again.
+
+***********
+
+Q: Where are all the behind the scenes files?
+
+A: On linux, the relevant directories are `~/.lbrynet`, `~/.lbrycrd`, and `~/.lbryum`, depending on which wallets you've used. On OS X, the folders of interest are `~/Library/Application Support/LBRY`, `~/.lbrycrd` and `~/.lbryum`, also depending on which wallets you've used.
+
+***********
+
+Q: How do I specify a web-UI to use?
+
+A: If the files for the UI you'd like to use are storred locally on your computer, start lbry with the --ui flag: `lbrynet-daemon --ui=/full/path/to/ui/files/root/folder`
+
+Note, once set with the UI flag the given UI will be cached by lbry and used as the default going forward. Also, it will only successfully load a UI if it contains a conforming requirements.txt file to specify required lbrynet and lbryum versions. [Here][https://github.com/lbryio/lbry-web-ui/blob/master/dist/requirements.txt] is an example requirements.txt file.
+
+To reset your ui to pull from lbryio, or to try a UI still in development, run lbry with the --branch flag: `lbrynet=daemon --branch=master`
+
+***********
+
+Q: How do I see the list of API functions I can call, and how do I call them?
+
+A: Here is an example script to get the documentation for the various API calls. To use any of the functions displayed, just provide any specified arguments in a dictionary.
+
+    import sys
+    from jsonrpc.proxy import JSONRPCProxy
+
+    try:
+      from lbrynet.conf import API_CONNECTION_STRING
+    except:
+      print "You don't have lbrynet installed!"
+      sys.exit(0)
+  
+    api = JSONRPCProxy.from_url(API_CONNECTION_STRING)
+    if not api.is_running():
+      print api.daemon_status()
+    else:
+      for func in api.help():
+        print "%s:\n%s" % (func, api.help({'function': func}))
+