Arcus Java Client 1.9.5

• [Fix] Add overflowAction availability check logic to collection APIs.
• [Fix] Add overflowAction / readable options to collection store APIs.
• [Fix] Remove unnecessary log messages.
• [Fix] Refactor unit tests.
• [Doc] Fix wrong comments about dropIfEmpty options in ArcusClientIf.
• [Other] Update maven surefire plugin version to 2.19.
• [Other] Apply CI tool (Travis-CI).