Fixes and version number bump in shapefile.py

- Reader speed up through batch unpacking bytes
- Merge README text into markdown file.  Remove text version.
- Fixed parsing of number of points for some shapes (MULTIPOINTM, MULTIPOINTZ)

Author: GeospatialPython

shapefile.py

@@ -3,9 +3,12 @@
 Provides read and write support for ESRI Shapefiles.
 author: jlawhead<at>geospatialpython.com
 date: 2015/06/22
-version: 1.2.3
+version: 1.2.5
 Compatible with Python versions 2.4-3.x
-version changelog: Reader.iterShapeRecords() bugfix for Python 3
+version changelog: 
+- Reader speed up through batch unpacking bytes
+- Merge README text into markdown file.  Remove text version.
+- Fixed parsing of number of points for some shapes (MULTIPOINTM, MULTIPOINTZ)
 """
 
 __version__ = "1.2.3"