Updated to Craftbukkit 1.4.7-R0.1

Swapped Metrics for (an updated version of) MetricsLite, since no custom
graphs are present.
Changed non-static references to the static Config methods to static
references.
Fixed reference to Metrics in the main class
Updated to Craftbukkit 1.5-R0.1
Changed plugin.yml version number to 2.20
Make bukkit see 2.20 as 2.20 instead of 2.2

When using a double, bukkit uses 2.2 when specifying 2.20.
Fixed this by making it a string.
Updated to bukkit 1.5.1-R0.1 & DF 2.21

Also added proper version comparison instead of checking if versions are
equal to each other in the update checker.
Updated to Craftbukkit 1.5.2-R0.1

Improved some BetterChest methods to point to the reference chest
instead of doing nothing.
Updated version check to new url
Bumped version to 2.22
Merge pull request #25 from DragonRealms/master

Updated to Craftbukkit 1.4.7-R0.1