Fix misspellings of IPython in the code.

Patch contributed by Tom MacWright.

Closes https://bugs.launchpad.net/ipython/+bug/532145

IPython/core/magic.py

@@ -660,7 +660,7 b' Currently the magic system has the following functions:\\n"""'
             print 'Object `%s` not found' % oname
 
     def magic_profile(self, parameter_s=''):
-        """Print your currently active IPyhton profile."""
+        """Print your currently active IPython profile."""
         if self.shell.profile:
             printpl('Current IPython profile: $self.shell.profile.')
         else:

IPython/testing/tests/test_ipunittest.py

@@ -1,4 +1,4 b''
-"""Tests for IPyhton's test support utilities.
+"""Tests for IPython's test support utilities.
 
 These are decorators that allow standalone functions and docstrings to be seen
 as tests by unittest, replicating some of nose's functionality.  Additionally,

docs/examples/core/example-gnuplot.py

@@ -30,7 +30,7 b" set ylabel 'sin(theta)'"
 """)
 
 # Now start an embedded ipython.
-ipshell('Starting the embedded IPyhton.\n'
+ipshell('Starting the embedded IPython.\n'
         'Try calling plot(x,y), or @gpc for direct access to Gnuplot"\n')
 
 #********************** End of file <example-gnuplot.py> *********************