change default ackers number into workers
Update project.clj - Bump snakeyaml dependency version from 1.9 to 1.11 (Latest Release)

Storm is using a snakeyaml version that is now two revisions old. I have recently come across a dependency conflict when using Storm with JRuby 1.7.3. When running in ruby 1.9 mode JRuby utilizes the snakeyaml library, however the internal JRuby  version of snakeyaml 1.11. Since Storm is running an outdated version, it would make sense to propose the change in hopes of resolving this dependency conflict.
Added schemas and validators to Config

Details:
* For every Config there is a schema of type Object named with the
  _SCHEMA suffix (e.g., TOPOLOGY_WORKERS_SCHEMA)
* For simple Classes (String, Number, Boolean), just the Class is
  sufficient for the schema's value
* For other Classes, instances of the FieldValidator interface are used.
* FieldValidator declares a method to validate the field and a method to
  return a plain-language description of the criteria for the user.

Status: Compiles, but not tested.  Nothing makes use of the schemas yet.
Make messaging config Strings final
Fix white-space in Config
Remove unknown topology.acker.tasks config
Correct a few config schemas
Use schemas to check storm config/proof-of-concept
Merge pull request #14 from nathanmarz/master

merge changes from nathanmarz/storm master
avoid duplicated storm-core-VERSION.jar in storm.home and its lib dir
add web ui for :
1. viewing log file
2. get/set log4j log level online
limit strickly on tail log file bytes
build_release.sh revised to ensure no duplicated jar
cd ../..
Merge branch 'master' of https://github.com/nathanmarz/storm into issuse-543
mv log viewer from supervisor process to a seperated daemon
added drpc.childopts config
remove errant character
Merge pull request #597 from anfeng/messaging

build_release.sh  modified to avoid duplicated storm-core.jar files
Merge branch 'master' into xiaokang-issuse-543