title: error with launching minecraft from cmd
body: <p>simple:
  i put in this:</p>
  
  <pre><code>@echo off
  cd\
  set MCDIR=%APPDATA%\.minecraft
  cd %MCDIR%
  java -Xmx1024M -Djava.library.path="%MCDIR%\versions\1.7.10-LiteLoader1.7.10\1.7.10-LiteLoader1.7.10-natives" -cp "%MCDIR%\libraries\org\apache\logging\log4j\log4j-api\2.0-beta9\log4j-api-2.0-beta9.jar;%MCDIR%\libraries\org\apache\logging\log4j\log4j-core\2.0-beta9\log4j-core-2.0-beta9.jar;%MCDIR%\libraries\com\ibm\icu\icu4j-core-mojang\51.2\icu4j-core-mojang-51.2.jar;%MCDIR%\libraries\com\mojang\authlib\1.3\authlib-1.3.jar;%MCDIR%\libraries\io\netty\netty-all\4.0.10.Final\netty-all-4.0.10.Final.jar;%MCDIR%\libraries\java3d\vecmath\1.3.1\vecmath-1.3.1.jar;%MCDIR%\libraries\net\sf\trove4j\trove4j\3.0.3\trove4j-3.0.3.jar;%MCDIR%\libraries\net\sf\jopt-simple\jopt-simple\4.5\jopt-simple-4.5.jar;%MCDIR%\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar;%MCDIR%\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar;%MCDIR%\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar;%MCDIR%\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar;%MCDIR%\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar;%MCDIR%\libraries\com\google\guava\guava\15.0\guava-15.0.jar;%MCDIR%\libraries\org\apache\commons\commons-lang3\3.1\commons-lang3-3.1.jar;%MCDIR%\libraries\commons-io\commons-io\2.4\commons-io-2.4.jar;%MCDIR%\libraries\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar;%MCDIR%\libraries\net\java\jinput\jinput-platform\2.0.5\jinput-platform-2.0.5-natives-windows.jar;%MCDIR%\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar;%MCDIR%\libraries\com\google\code\gson\gson\2.2.4\gson-2.2.4.jar;%MCDIR%\libraries\org\lwjgl\lwjgl\lwjgl\2.9.0\lwjgl-2.9.0.jar;%MCDIR%\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.0\lwjgl_util-2.9.0.jar;%MCDIR%\versions\1.7.10-LiteLoader1.7.10\1.7.10-LiteLoader1.7.10.jar" net.minecraft.client.main.Main --username psrcek --version 1.7.10-LiteLoader1.7.10 --gameDir C:\Users\David\AppData\Roaming\.minec~1 --assetsDir C:\Users\David\AppData\Roaming\.minec~1\assets --accessToken 70ead0e496e84d569ece26f01c122eeb --uuid 15ad0e60-8691-4e29-9de9-2d6b538bf56d **--userProperties = "rni30u9cq1yfvsu0w665371mnjdrsss"**
  </code></pre>
  
  <p>and  i get this exception: 
  (something is wrong with the text i marked with **)</p>
  
  <pre><code>Exception in thread "main" com.google.gson.JsonSyntaxException: com.google.gson.
  stream.MalformedJsonException: Expected value at line 1 column 1
      at com.google.gson.Gson.fromJson(Gson.java:818)
      at com.google.gson.Gson.fromJson(Gson.java:768)
      at com.google.gson.Gson.fromJson(Gson.java:717)
      at net.minecraft.client.main.Main.main(SourceFile:116)
  Caused by: com.google.gson.stream.MalformedJsonException: Expected value at line
   1 column 1
      at com.google.gson.stream.JsonReader.syntaxError(JsonReader.java:1505)
      at com.google.gson.stream.JsonReader.doPeek(JsonReader.java:586)
      at com.google.gson.stream.JsonReader.peek(JsonReader.java:414)
      at com.google.gson.Gson.fromJson(Gson.java:799)
      ... 3 more
  </code></pre>