Use modpack for easier installation (idea is taken from cornernote's mod format), fix some grammar in API reference, move chat command reference and API reference to separate files.

Chat Commands.md

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+Chat Commands
+-------------
+For more information, see the [README](README.md).
+
+### //reset
+
+Reset the region so that it is empty.
+
+    //reset
+
+### //mark
+
+Show markers at the region positions.
+
+    //mark
+
+### //pos1
+
+Set WorldEdit region position 1 to the player's location.
+
+    //pos1
+
+### //pos2
+
+Set WorldEdit region position 2 to the player's location.
+
+    //pos2
+
+### //p set/get
+
+Set WorldEdit region by punching two nodes, or display the current WorldEdit region.
+
+    //p set
+    //p get
+
+### //volume
+
+Display the volume of the current WorldEdit region.
+
+    //volume
+
+### //set <node>
+
+Set the current WorldEdit region to <node>.
+
+    //set dirt
+    //set default:glass
+    //set mesecons:mesecon
+
+### //replace <search node> <replace node>
+
+Replace all instances of <search node> with <place node> in the current WorldEdit region.
+
+    //replace cobble stone
+    //replace default:steelblock glass
+    //replace dirt flowers:flower_waterlily
+    //replace flowers:flower_rose flowers:flower_tulip
+
+### //hollowsphere <radius> <node>
+
+Add hollow sphere at WorldEdit position 1 with radius <radius>, composed of <node>.
+
+    //hollowsphere 5 dirt
+    //hollowsphere 12 default:glass
+    //hollowsphere 17 mesecons:mesecon
+
+### //sphere <radius> <node>
+
+Add sphere at WorldEdit position 1 with radius <radius>, composed of <node>.
+
+    //sphere 5 dirt
+    //sphere 12 default:glass
+    //sphere 17 mesecons:mesecon
+
+### //hollowcylinder x/y/z/? <length> <radius> <node>
+
+Add hollow cylinder at WorldEdit position 1 along the x/y/z/? axis with length <length> and radius <radius>, composed of <node>.
+
+    //hollowcylinder x +5 8 dirt
+    //hollowcylinder y 28 10 default:glass
+    //hollowcylinder z -12 3 mesecons:mesecon
+    //hollowcylinder ? 2 4 stone
+
+### //cylinder x/y/z/? <length> <radius> <node>
+
+Add cylinder at WorldEdit position 1 along the x/y/z/? axis with length <length> and radius <radius>, composed of <node>.
+
+    //cylinder x +5 8 dirt
+    //cylinder y 28 10 default:glass
+    //cylinder z -12 3 mesecons:mesecon
+    //cylinder ? 2 4 stone
+    
+### //pyramid <height> <node>
+
+Add pyramid at WorldEdit position 1 with height <height>, composed of <node>.
+
+    //pyramid 8 dirt
+    //pyramid 5 default:glass
+    //pyramid 2 stone
+
+### //spiral <width> <height> <spacer> <node>
+
+Add spiral at WorldEdit position 1 with width <width>, height <height>, space between walls <spacer>, composed of <node>.
+
+    //spiral 20 5 3 dirt
+    //spiral 5 2 1 default:glass
+    //spiral 7 1 5 stone
+
+### //copy x/y/z/? <amount>
+
+Copy the current WorldEdit region along the x/y/z/? axis by <amount> nodes.
+
+    //copy x 15
+    //copy y -7
+    //copy z +4
+    //copy ? 8
+
+### //move x/y/z/? <amount>
+
+Move the current WorldEdit positions and region along the x/y/z/? axis by <amount> nodes.
+
+    //move x 15
+    //move y -7
+    //move z +4
+    //move ? -1
+
+### //stack x/y/z/? <count>
+
+Stack the current WorldEdit region along the x/y/z/? axis <count> times.
+
+    //stack x 3
+    //stack y -1
+    //stack z +5
+    //stack ? 12
+
+### //transpose x/y/z/? x/y/z/?
+
+Transpose the current WorldEdit region along the x/y/z/? and x/y/z/? axes.
+
+    //transpose x y
+    //transpose x z
+    //transpose y z
+    //transpose ? y
+
+### //flip x/y/z/?
+
+Flip the current WorldEdit region along the x/y/z/? axis.
+
+   //flip x
+   //flip y
+   //flip z
+   //flip ?
+
+### //rotate x/y/z/? <angle>
+
+Rotate the current WorldEdit region along the x/y/z/? axis by angle <angle> (90 degree increment).
+
+    //rotate x 90
+    //rotate y 180
+    //rotate z 270
+    //rotate ? -90
+
+### //dig
+
+Dig the current WorldEdit region.
+
+    //dig
+
+### //save <file>
+
+Save the current WorldEdit region to "(world folder)/schems/<file>.we".
+
+    //save some random filename
+    //save huge_base
+
+### //load <file>
+
+Load nodes from "(world folder)/schems/<file>.we" with position 1 of the current WorldEdit region as the origin.
+
+    //load some random filename
+    //load huge_base
+
+### //metasave <file>
+
+Save the current WorldEdit region including metadata to "(world folder)/schems/<file>.wem".
+
+    //metasave some random filename
+    //metasave huge_base
+
+### //metaload <file>
+
+Load nodes and metadata from "(world folder)/schems/<file>.wem" with position 1 of the current WorldEdit region as the origin.
+
+    //metaload some random filename
+    //metaload huge_base