Minor typo fixes and rewording
Merge pull request #37 from ivuk/fix-typos-dockerfile

Minor typo fixes and rewording for Dockerfile
Fix whitespace around operator and blank line at the end of file in tests/tools/run_local_server
Merge pull request #40 from ivuk/fix-pep8

[PEP 8] Two small fixes for tests/tools/run_local_server
Merge remote-tracking branch 'upstream/master'