Parameterise docker source folder
Updated Readme as per source folder parameterisation.
Rename dockerSrcDir parameter to src
Merge branch 'master' of https://github.com/alexec/docker-maven-plugin

# By Laurie Hallowes
# Via Alex Collins (1) and Laurence Hallowes (1)
* 'master' of https://github.com/alexec/docker-maven-plugin:
  Rename the log config file so it is picked up by logback and change the logging level of the jersey client as it would crash the terminal when logging the transfer of large binary files
Minor clarification in Readme.md
Merge pull request #4 from vlfig/master

Parameterise the source folder location