update the requirements of package versions

Author: Irfan Azeez

askbot_requirements.txt

@@ -6,7 +6,7 @@ akismet
 beautifulsoup4
 django-avatar>=2.0
 django-celery>=3.0.11
-django-compressor>=1.3,<=1.5',
+django-compressor<=1.5
 django-countries==3.3
 django-followit==0.1.0
 django-keyedcache
@@ -16,9 +16,8 @@ django-recaptcha>=1.0.3
 django-robots==1.0
 django-threaded-multihost
 django-tinymce==1.5.3
-django-transaction-signals'
+django-transaction-signals
 django<1.8
-django>=1.5.1,<1.7
 html5lib==0.90
 jsonfield
 markdown2
@@ -27,7 +26,7 @@ oauth2
 pyjwt
 pystache==0.3.1
 python-openid
-pytz==2013b
+pytz==2013b0
 requirements-parser
 sanction==0.3.1
 simplejson