Minor bug fixes, adding spotify music player, and adding sphinx documentation

doc/build/html/_sources/netscriptadvancedfunctions.rst.txt

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+Netscript Advanced Functions
+============================
+
+These Netscript functions become relevant later on in the game. They are put on a separate page because
+they contain spoilers for the game.
+
+getBitNodeMultipliers
+^^^^^^^^^^^^^^^^^^^^^
+
+.. js:function:: getBitNodeMultipliers()
+
+    Returns an object containing the current BitNode multipliers. This function requires Source-File 5 in order
+    to run. The multipliers are returned in integer forms (e.g. 1.5 instead of 150%). The multipliers represent
+    the difference between the current BitNode and the original BitNode (BitNode-1). For example, if the
+    *CrimeMoney* multiplier has a value of 0.1, then that means that committing crimes in the current BitNode
+    will only give 10% of the money you would have received in BitNode-1. The object has the following structure,
+    (subject to change in the future)::
+
+        {
+            ServerMaxMoney: 1,
+            ServerStartingMoney: 1,
+            ServerGrowthRate: 1,
+            ServerWeakenRate: 1,
+            ServerStartingSecurity: 1,
+            ManualHackMoney: 1,
+            ScriptHackMoney: 1,
+            CompanyWorkMoney: 1,
+            CrimeMoney: 1,
+            HacknetNodeMoney: 1,
+            CompanyWorkExpGain: 1,
+            ClassGymExpGain: 1,
+            FactionWorkExpGain: 1,
+            HackExpGain: 1,
+            CrimeExpGain: 1,
+            FactionWorkRepGain: 1,
+            FactionPassiveRepGain: 1,
+            AugmentationRepCost: 1,
+            AugmentationMoneyCost: 1,
+        }
+
+    Example::
+
+        mults = getBitNodeMultipliers();
+        print(mults.ServerMaxMoney);
+        print(mults.HackExpGain);