Release 1.0.6

• Merge pull request #4 from BrewInteractive/fix--fix-for-subfolders-for-plugin-search (bd9198c)
• refactor: removed unused type. (b944cb3)
• refactor: fix for plugin traverser (0cb19b6)
• test: fix for plugin traverser test (4865e0f)
• refactor: renamed method. (36836b4)
• test: renamed test. (1ef82dc)
• test: fix for plugin traverser test (8355e3f)
• test: add new test plugin (c01bc7a)
• fix: fix for subfolders for plugin search (c660ac8)
• doc: update installation document (0040dc2)