0.6.0

• [BC BREAK] Path resolvers refactored:
  • PathResolverInterface is for resolvers that don't require a base path or
    other information passed to resolve().
  • BasePathResolverInterface is for resolvers that take a base path in
    resolve().
  • BasePathResolver replaces PathResolver.
  • FixedBasePathResolver replaces BoundPathResolver.
• [BC BREAK] Class/interface deletions:
  • AbstractAbsoluteFileSystemPath
  • AbstractRelativeFileSystemPath
  • NormalizingPathResolver (just use normalize() after resolution)
  • NormalizingPathResolverTrait (just use normalize() after resolution)
  • PathResolverTrait (use resolve() method or an injected resolver class)
  • WorkingDirectoryResolver (see the readme for a replacement solution)
• [BC BREAK] Class/interface renames:
  • UndefinedPathAtomException -> UndefinedAtomException
• [BC BREAK] The following methods no longer accept an optional normalizer:
  • PathInterface::parent()
  • PathInterface::normalize()
  • AbsolutePathInterface::isRoot()
  • AbsolutePathInterface::isParentOf()
  • AbsolutePathInterface::isAncestorOf()
  • AbsolutePathInterface::relativeTo()
  • RelativePathInterface::isSelf()
• [NEW] Static factory methods available for all path types. Examples
  include:
  • Path::fromString()
  • Path::fromAtoms()
  • WindowsPath::fromDriveAndAtoms()
• [NEW] Implemented AbsolutePathInterface::resolve() and
  RelativePathInterface::resolveAgainst as alternatives to using a resolver
  instance.
• [NEW] Implemented nameAtomAt() and nameAtomAtDefault().
• [NEW] Implemented InvalidPathExceptionInterface for all exceptions that
  involve a complete, but invalid path. Various new exceptions of this type may
  be thrown when appropriate.
• [IMPROVED] Improved Windows path support:
  • Relative paths now support drive specifiers (yes, it's a thing).
  • Drive-less absolute paths are now represented as a relative path (after
    all, it is relative to the current drive).
  • Absolute paths now always have a drive specifier.
  • Implemented new WindowsPathInterface methods matchesDrive() and
    matchesDriveOrNull().
  • Implemented WindowsBasePathResolver.
• [IMPROVED] Path factories will now create relative paths by default,
  rather than absolute ones.
• [IMPROVED] atomAt() and atomAtDefault() now accept negative indices to
  indicate an offset from the last index.
• [IMPROVED] Extra care is taken to avoid trailing separators in all result
  paths.
• [IMPROVED] Extra care is taken to avoid constructing new instances of
  static dependencies. Should result in minor memory usage / performance
  improvements.
• [MAINTENANCE] General repository maintenance