[pk] fix 2 typo in strings

src/features_window.py

@@ -52,7 +52,7 @@ class FeaturesWindow:
 				_('Requires python-avahi.'),
 				_('Requires pybonjour (http://o2s.csail.mit.edu/o2s-wiki/pybonjour).')),
 			_('gajim-remote'): (self.dbus_available,
-				_('A script to controle gajim via commandline.'),
+				_('A script to controle Gajim via commandline.'),
 				_('Requires python-dbus.'),
 				_('Feature not available under Windows.')),
 			_('OpenGPG'): (self.gpg_available,
@@ -92,7 +92,7 @@ class FeaturesWindow:
 				_('Requires compilation of the idle module from Gajim sources.'),
 				_('Requires compilation of the idle module from Gajim sources.')),
 			_('LaTeX'): (self.latex_available,
-				_('Transform LaTeX espressions between $$ $$.'),
+				_('Transform LaTeX expressions between $$ $$.'),
 				_('Requires texlive-latex-base, dvips and imagemagick. You have to set \'use_latex\' to True in the Advanced Configuration Editor.'),
 				_('Feature not available under Windows.')),
 			_('End to end encryption'): (self.pycrypto_available,