New blocks for snapshot

Granite, Diorite, Andesite (new data values for blockid:1)
Iron trapdoor

See #1062
New snapshot block: slime blocks

See #1062
Added ['time'] attribute to Players POI

It's nice that we can see where a player was at logout, but now we can see when that logout was.
Merge branch 'master' into snapshot
Merge branch 'master' into snapshot
add new 14w25a prismarine and sea lantern blocks
Merge pull request #1119 from dbergl/prismarine

add new 14w25a prismarine and sea lantern blocks
Latest version of minecraft jar

Updated the version variable in the short script to install the latest minecraft jar for textures.
Merge pull request #1133 from bmbeverst/patch-1

Latest version of minecraft jar
Fix error in the config.rst file
Merge pull request #1141 from enaut/docfix

Fix error in the config.rst file
Merge PR# 1082
Change ctime to localtime.

See discussion in #1082
Implement a UUID lookup cache, to avoid hitting the mojang server so much

The cache is a gzip'd JSON file.  Soon we will have a small script to
help manage the cache

See #1090 and #1117
Show an ETA when using the plain text logger

Closes #1088
Merge branch 'master' into snapshot
Merge remote-tracking branch 'origin/snapshot' into snapshot
Added support for the difference fence colors
added support for different door types
Fix a typo and silly crash case

Would crash instead of gracefully exiting if a tileset dir wasn't provided. Might also change how the memory limit option works - currently has to be provided, even though that's not mentioned.