Unpin Yapsy and doit versions

Kwpolska · Kwpolska · commit d015f82b18fa · 2015-07-03T09:13:42.000+02:00
Signed-off-by: Chris Warrick &lt;kwpolska@gmail.com&gt;
diff --git a/requirements.txt b/requirements.txt
@@ -1,12 +1,12 @@
-doit==0.28.0
+doit>=0.28.0
 Pygments>=1.6
 Pillow>=2.4.0
 python-dateutil==2.4.2
 docutils>=0.12
 mako>=1.0.0
 unidecode>=0.04.16
 lxml>=3.3.5
-Yapsy==1.11.223
+Yapsy>=1.11.223
 PyRSS2Gen>=1.1
 logbook>=0.7.0
 blinker>=1.3
