added script to bump version

scripts/bump-version.py

+#!/usr/bin/env python
+import sys
+out=[]
+version=sys.argv[1].split('.')
+if len(version)==2:
+  major, minor, patch=(int(version[0]), int(version[1]), 0)
+else:
+  major, minor, patch=(int(version[0]), int(version[1]), int(version[2]))
+for line in open('modules/config/version.hh'):
+  if line.startswith('#define OST_VERSION_MAJOR'):
+    out.append('#define OST_VERSION_MAJOR %d\n' % major)
+  elif line.startswith('#define OST_VERSION_MINOR'):
+    out.append('#define OST_VERSION_MINOR %d\n' % minor)
+  elif line.startswith('#define OST_VERSION_PATCH'):
+    out.append('#define OST_VERSION_PATCH %d\n' % patch)
+  elif line.startswith("#define OST_VERSION_STRING"):
+    out.append('#define OST_VERSION_STRING "%d.%d.%d"\n' % (major,minor,patch))
+  else:
+    out.append(line)
+
+open('modules/config/version.hh', 'w').write(''.join(out))
\ No newline at end of file