#667 fixed api process list page
#679 - Bug fixes for error scenarios on stages and job pages
#679 - removed comment
#000 changing process list controller response type to json from text
#675 - Fix a failing rspec spec in pipeline whitelist PR.
Merge pull request #689 from pshivana/rails4_defect_fixes

#667 fixed api process list page
removing 'and return' during render and this is anyway the last line in the method
Merge pull request #693 from jyotisingh/bug_fixes

Bug fixes
Handle UnknownHostException

- If the host system's local hostname is not resolvable, a UnknownHostException is thrown in the
   shouldDetermineIfAddressIsLocal test. This caused the test run to stop. This change resolves the
   IP using localhost in the event of an UnknownHostException.
Merge pull request #676 from pivotal-cf-experimental/recursive-symlink-clean-working-directory

Update Apache commons-io to version 2.4.
Merge pull request #675 from pivotal-cf-experimental/pipeline-whitelist

Pipeline whitelist
Merge pull request #694 from arvindsv/fix_failing_test_in_pipeline_whitelist_pr

#675 - Fix a failing rspec spec in pipeline whitelist PR.
#694 Fix a failing rspec spec in pipeline whitelist PR
Merge pull request #702 from pshivana/master

#694 Fix a failing rspec spec in pipeline whitelist PR
Log additional information when failing to clean a directory.

Refer to #360 for further information.
Merge pull request #704 from gajwani/more-cleanup-information

Log additional information when failing to clean a directory.
Add migration for comments in pipelines table.

Signed-off-by: Matthew Boedicker <mboedicker@pivotal.io>
Add getComment() method to PipelineInstanceModel.

Signed-off-by: Matthew Boedicker <mboedicker@pivotal.io>
Add updateComment() method to PipelineSqlMapDao.

Signed-off-by: Matthew Boedicker <mboedicker@pivotal.io>
Added updateComment method to PipelineHistoryService.

Signed-off-by: Matthew Boedicker <mboedicker@pivotal.io>