Fix reflection warnings

When running with *warn-on-reflection* true, I get the following warnings:

Reflection warning, clj_logging_config/log4j.clj:201:47 - reference to field getScheme on java.lang.Object can't be resolved.
Reflection warning, clj_logging_config/log4j.clj:202:75 - reference to field toURL on java.lang.Object can't be resolved.
Reflection warning, clj_logging_config/log4j.clj:202:57 - reference to field getPath can't be resolved.
Reflection warning, clj_logging_config/log4j.clj:205:47 - reference to field getScheme on java.lang.Object can't be resolved.
Reflection warning, clj_logging_config/log4j.clj:206:57 - reference to field getPath on java.lang.Object can't be resolved.
Reflection warning, clj_logging_config/log4j.clj:210:59 - call to java.io.FileWriter ctor can't be resolved.
Bump tools.logging dependency version

The old version was causing reflection warnings, 0.2.6 fixes them.

> Reflection warning, clojure/tools/logging.clj:270:1 - reference to field isTraceEnabled can't be resolved.
> Reflection warning, clojure/tools/logging.clj:270:1 - reference to field isDebugEnabled can't be resolved.
> Reflection warning, clojure/tools/logging.clj:270:1 - reference to field isInfoEnabled can't be resolved.
> Reflection warning, clojure/tools/logging.clj:270:1 - reference to field isWarnEnabled can't be resolved.
> Reflection warning, clojure/tools/logging.clj:270:1 - reference to field isErrorEnabled can't be resolved.
> Reflection warning, clojure/tools/logging.clj:270:1 - reference to field isErrorEnabled can't be resolved.
Merge pull request #25 from emlyn/patch-1

Fix reflection warnings