- Macro expansion in code fragment pragmas

  Currently we expand macros in all pragmas. This is probably the wrong
  semantics for "code fragment" macros like access/get/set. I wonder if
  there is a way to disable macros expansion for certain parts of the
  pragma (remember, our pragma can have multiple specifiers).

- Document character encoding used to return text for each database [doc]

- Add noexcept to move construction and assignment [c++11]

  Without noexcept some code (e.g., swap()) may have to resorts to copy.

! Command Line Tools required for ODB binary package on Mac OS [macosx]

  It seems without them there are no standard headers in /usr/include. Need
  to test and document.

! Private GCC in Mac OS ODB binary crashes on Yosemite [macosx]

  The symptom is:

  odb: error: unable to extract profile paths

  See email from <axel50397@gmail.com>/23-Oct-2014.