Better $id$ replacement during build preparation.
New image for the extension package.
Larger images in NuProj.ico
Enum description is optionally available for both file storage and GUI.

eg. [Description("v4.0|.NET Framework 4")]
BREAKING CHANGE: Using Project SubType (aka Flavor) instead of standalone Project.

MPF removed, new WinForm based property pages, VS.NuBuildNode is
completely changed, MS's CSVSXProjectSubType sample extended with
ComboBox handling and NuBuildPropertyPagePropertyStore uses the project
file properties instead of a separated XML block.
Emits only warning when non .nuspec file has the "Compile" Build action. Mentioned in issue #31.
VS extension v2.0, currently without upgrade
Add EmbeddedResource files to the package. Issue #42
Handle project properties without MSBuild hack.
FIxed issue #43

IPropertyProvider specific code moved to new class, NuPrepare also use
this to resolve matadata/id value for filename, NuPackage uses
NuPrepare's NuPackageVersion instead of PropertyProvider.
Feature: Using .ppp extension for pre-package-processing.

Tokens are replaced in these files and extension removed before adding
to package.
The main goal is to leave out T4 usage for build project property
access, because it requires host-specific templates, causing problems on
TFS.
Bugfix: no svchost.exe is created
minor cleanup
Bugfix: load on demand dependent assemblies
bugfix: Clean failed on CopyToOutputDirectory files

NuTargets included the source of these files not the destination.
references with copyLocal=false are not property providers

package builds normally, these references are skipped only as property
providers, it's practical when several different .dll-s are packed
together and only one is valid as property provider
skip properties during pre package processing of .ppp files

$(propertyname)$ will be $propertyname$ after ppp, ie. valid for eg. a
.pp file
$title$ property in .nuspec from binaries
new AddDependenciesToMetadata property in project files

with VS property screen, and TransformOnBuildProperty is disabled until
it's usage is implemented
bugfix: some typos in copyright headers