Merge tag '0.1' into devel

Release 0.1
Move the cursor to a datafile

*this adds: support for cursor datafiles
*a script to generate the cursor data file (automagically done
 by setup.py
*rgb support for the cursor
*the default cursor is removed from the source
fix .gitignore
tools for creating cursor data files
Add documentation for the new features
bugfix
bugfix
bugfix
fixed color parsing in the make_lock.py tool
fix border stroking in make_lock.py
fix palette and dual image mode
add support for taking the hotspot from an xmb
extend README for the tools
fix README
update email address
update email address
fix memleaks

*valgrind still reports errors, but does not show stack traces
fix dependency list in README.md
Handle None result from find_library

Wrap all library loads into a separate function which handles concerning
return values from the involved ctypes functions.
Catch ImportErrors from xcb and X utility libraries