fix in naming and feature setup on install:

erpnext/accounts/doctype/pos_setting/pos_setting.json

@@ -1,6 +1,6 @@
 {
- "autoname": "POS/.####", 
- "creation": "2013-05-24 12:15:51.000000", 
+ "autoname": "naming_series:", 
+ "creation": "2013-05-24 12:15:51", 
  "docstatus": 0, 
  "doctype": "DocType", 
  "fields": [
@@ -34,6 +34,7 @@
    "no_copy": 1, 
    "oldfieldname": "naming_series", 
    "oldfieldtype": "Select", 
+   "options": "POS-Setting-.#", 
    "permlevel": 0, 
    "read_only": 0, 
    "reqd": 1
@@ -200,7 +201,7 @@
  ], 
  "icon": "icon-cog", 
  "idx": 1, 
- "modified": "2014-01-29 13:08:25.000000", 
+ "modified": "2014-04-27 03:11:44.969097", 
  "modified_by": "Administrator", 
  "module": "Accounts", 
  "name": "POS Setting", 

erpnext/setup/doctype/naming_series/naming_series.py

@@ -24,7 +24,7 @@ class NamingSeries(Document):
 		}
 
 	def scrub_options_list(self, ol):
-		options = filter(lambda x: x, [cstr(n.upper()).strip() for n in ol])
+		options = filter(lambda x: x, [cstr(n).strip() for n in ol])
 		return options
 
 	def update_series(self, arg=None):

erpnext/setup/install.py

@@ -57,7 +57,8 @@ def feature_setup():
 		'fs_recurring_invoice', 'fs_pos', 'fs_manufacturing', 'fs_quality',
 		'fs_page_break', 'fs_more_info', 'fs_pos_view'
 	]
-	doc.update(dict(zip(flds, [1]*len(flds))))
+	for f in flds:
+		doc.set(f, 1)
 	doc.save()
 
 def set_single_defaults():