Improved initialization of translator; renamed service to VuFind\Translator; added some missing comments.

Renamed 'logger' service to 'VuFind\Logger' to avoid conflicts; updated all logger-dependent classes to use Zend\Log\LoggerAwareInterface; set up standard initializer for main service manager and other factories.

Disable configuration of Apache during startup and shutdown since this is no longer a prerequisite for running unit tests, and it seems to be causing problems on the live CI server.

Made bootstrap lighter-weight by creating factories instead of instantiating services during plugin manager initialization.  Now objects are instantiated on demand.

Prefixed plugin manager service names with "VuFind\" as first step toward best-practice naming for global services.

More appropriate abstraction (throw exception instead of dying with non-object error if table manager not assigned).

Changed statistics driver plugin manager to return non-shared instances; eliminated explicit cloning.

Resolved bug in install script: directory structure not correctly initialized when choosing default local directory in interactive mode.  (Resolves VUFIND-697).

Search box cleanup: hide type drop-down if no types are available; removed some unused lines from jquerymobile version.

* tests/unit-tests/src/ILS/Driver/SymphonyTest.php
(testBadBaseUrl): Skip test if PHP version < 5.3.4.