Changing shell settings loader to prep for multi-tenancy work

Adding data prefix property
Moving to a different yaml library
Renaming IShellSettingsLoader and ShellSettingsLoader to ITenantManager and DefaultTenantManager
Avoiding use of MapPath in the appdatafolder abstraction

--HG--
branch : dev

lib/yaml/ChangeLog.txt

@@ -0,0 +1,47 @@
+--- 2009-10-04 Osamu TAKEUCHI <osamu@big.jp>
+Alpha release of YamlSerializer as 0.9.0.2
+
+* All "_"s in integer and floating point values are neglected
+  to accommodate the !!int and !!float encoding.
+* YamlConfig.DontUseVerbatimTag is added but the default value is set false.
+  Note that !<!System.Int32[,]> is much human friendly than !System.Int32%5B%2C%5D.
+* Equality of YamlNode with an unknown tag is evaluated by identity,
+  while that of !!map and !!seq node is still evaluated by YAML's standard.
+  Note that equality of !!map and !!seq are different from that of object[]
+  and Dictionary<object, object>.
+* YamlConfig.OmitTagForRootNode was added. Fixed issue #2850.
+* Serialize Dictionary<object,object> to !!map. Fixed #2891.
+* Modified [126-130] ns-plain-???, [147] c-ns-flow-map-separate-value(n,c)
+  to accommodate revision 2009-10-01
+* Omit !< > if Tag contains only ns-tag-char, Fixed issue #2813
+
+--- 2009-09-23 Osamu TAKEUCHI <osamu@big.jp>
+Alpha release of YamlSerializer as 0.9.0.1
+
+* Removed TODO's for reporting bugs in YAML spec that are done.
+* Fixed assembly copyright.
+* !!merge is supported. Fixed issue#2605.
+* Read-only class-type member with no child members are omitted when 
+  serializing. Fixed issue#2599.
+* Culture for TypeConverter is set to be CultureInfo.InvariantCulture. 
+  Fixed issue #2629.
+* To fix Issue#2631
+  * Field names and property names are always presented as simple texts.
+  * When deserializing, we can not avoid the parser parses some spacial
+    names to !!bool and !!null. Such non-text nodes are converted to
+    texts at construction stage.
+* To fix issue#2663
+  * Hash code stored in a mapping node is now updated when the a key node's
+    content is changed.
+  * Hash code and equality became independent on the order of keys in a 
+    mapping node.
+  * A mapping node checks for duplicated keys every time the node content 
+    is changed.
+  * Test results are changed because some of them are dependent on the hash 
+    key order.
+* The current equality evaluation is too strict, probably needs some adjustment.
+* NativeObject property was added to YamlScalar.
+* YamlScalar's equality is evaluated by comparing NativeObject.
+
+--- 2009-09-11 Osamu TAKEUCHI <osamu@big.jp>
+First release of YamlSerializer as 0.9.0.0

lib/yaml/Readme.txt

@@ -0,0 +1,39 @@
+YamlSerializer 0.9.0.2 (2009-10-04)        Osamu TAKEUCHI <osamu@big.jp>
+
+Description:
+	A library that serialize / deserialize C# native objects into YAML1.2 text.
+
+Development environment: 
+	Visual C# 2008 Express Edition
+	Sandcastle (2008-05-29)
+	SandcastleBuilder 1.8.0.2
+	HTML Help workshop 4.74.8702
+	NUnit 2.5.0.9122
+	TestDriven.NET 2.0
+
+Support web page: 
+	http://yamlserializer.codeplex.com/
+
+License:
+	YamlSerializer is distributed under the MIT license as following:
+
+---
+The MIT License (MIT)
+Copyright (c) 2009 Osamu TAKEUCHI <osamu@big.jp>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of 
+this software and associated documentation files (the "Software"), to deal in the 
+Software without restriction, including without limitation the rights to use, copy, 
+modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, 
+and to permit persons to whom the Software is furnished to do so, subject to the 
+following conditions:
+
+The above copyright notice and this permission notice shall be included in all 
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, 
+INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A 
+PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT 
+HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF 
+CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE 
+OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.