Merge pull request apache#1213 from objmagic/more-logging-impro

Improve logging for TMasterUtils.

fix typo for example exclamation topology (apache#1030)

Documentation for distributed deployment and schedulers (apache#747)

* added initial scheduler documentation

* Documentation for Deployment Overview and configuration. Also modified Aurora Cluster, Mesos Cluster, Local Cluster and Slurm Cluster

* incorporated feedbacks on English corrections

* empty new line at the end

* incorporate feedbacks on English

* incorporate additional feedbacks

* removed setup from toc

* fixed feedbacks

* change mdash to use ---

* reworded text and removed the link

add serialVersionUID for TestWordTopology (apache#718)

implement aurora scheduler getJobLinks (apache#707)

commit messages should be enclosed in quotes (apache#642)

fixed several docs

Shut down all executor services in SchedulerMain when killing a topol…

…ogy (apache#520)

Shut down all executor services in SchedulerMain when killing a topology.

Merge pull request apache#257 from twitter/karthik/docs

Updated getting started guide

Merge pull request apache#241 from twitter/karthik/ps

added ps command