Log Message:
libspectrum: updated to 1.5.0

libspectrum 1.5.0 released.

* Various minor bug fixes/improvements:
  * Autogenerate code for initialising/freeing snap structure (Sergio
    Baldoví).
  * Fix loading of raw data blocks (Alberto Garcia).
  * Ensure trailing TZX pause blocks result in an edge (Alberto
    Garcia).
  * Fix bits_through_byte calculation in TZX RAW block (Alberto
    Garcia).
  * Remove spurious first pulse in a raw data block (Alberto Garcia).
  * Minimal snapshot support for TTX2000S interface (Sergio Baldoví).
  * Fix prototypes and warnings for MorphOS (Stefan Haubenthal).
  * Change type of len field in GArray to guint (Sergio Baldoví).