#20 engine factories added
#20 fixed hidden character + removed old engine factory
#20 added store mappers to transform entities metadata into store ones
#20 added new top engine factory built on top of individual engine factories
#20 updated the bootstrap to the new way to load engines
#20 updated UT + added new ones
#20 updated demo
#20 updated the docs
fixed failing UTs
updated command to run all tests at once in travis
added queuefactory UT to top level category test suite
Merge branch 'develop' into feature/engine-factories
try to fix code 0 by splitting the test runs
added coverage to test command
display coverage file after each test suite
changed venus annotations to leverage code coverage
added UT for objectGetter and objectSetter functions
removed unreachable path in objectGetter
improved object(G|S)etter UT
removed displaying code coverage file, makes output unreadable