Merge branch 'release/0.8' into develop

* release/0.8:
  Bumping soversion for 0.8
Directory walkers

This patch adds a function that walks a directory, calling callback
methods for each file and subdirectory that's encountered.
Copying buffers

This patch adds a helper function for copying the contents of one buffer
into another, and helper macros for extracting individual bytes or
characters from a buffer.
Bumping soversion for 0.9.0
Merge branch 'release/0.9.0'

* release/0.9.0:
  Bumping soversion for 0.9.0
  Copying buffers
  Directory walkers
Merge branch 'release/0.9.0' into develop

* release/0.9.0:
  Bumping soversion for 0.9.0
Fix clang warnings in cork_array macros
Fix variable type in cork_command_set_show_help
Merge branch 'feature/clang-warnings-fixes' into develop

* feature/clang-warnings-fixes:
  Fix variable type in cork_command_set_show_help
  Fix clang warnings in cork_array macros
Predefined hash table key types

We now provide specialized constructor functions for two types of key
that are often used in a hash table: C strings, and raw pointers.
Add Buzzy package description
Merge branch 'feature/string-hash-table' into develop

* feature/string-hash-table:
  Predefined hash table key types
Bump soversion for 0.10.0
Merge branch 'release/0.10.0'

* release/0.10.0:
  Bump soversion for 0.10.0
  Add Buzzy package description
  Predefined hash table key types
  Fix variable type in cork_command_set_show_help
  Fix clang warnings in cork_array macros