We used to use the current timestamp when building the archive; switch to using
the timestamp of the tag with the version we're packaging.

This requires some monkey patching since tarfile module is always using current
timestamp when writing gzip header...

Also exclude archive.py from archive and simplify release file list in Makefile.

Put debugging information into the object file so that it can be shipped
with NuGet binaries. Based on the linker settings for the executable
debug info will either be put into the final .PDB or stripped out.

Fixes #110.

Merge USEOWNSUBDIR and PKGCONFIG build flags; move the pkg-config source file
to scripts/.

This pivot seemed to be causing issues because the NuGet package thought it was actually dynamic.

Include more configurations in the Nuget package.

Having CMakeLists.txt in the project root makes it so much easier to use pugixml
as an external dependency in another CMake project.

Also remove top-level LICENSE file since .podspec already has it.

embed license to podspec, as LICENSE file is not in 1.7 tag, cocoapods errors otherwise. Get sources from zeux github

Git warns when it finds "whitespace errors". This commit gets
rid of these whitespace errors for code and adoc files.

Also refactor to use the same case and run after common options.

This avoids linker warning when building the final executable and we don't
have to package the .PDB file.

Move pugixml project file for VS2015 to scripts/ and unify the output file
structure similar to old VS201x projects. Remove test projects and solution
since they are not required for building.

Provide more accurate information in the package script and handle build
errors during package construction properly.

We now make sure that in CMake builds we have long long support. This requires
CMake 3.1 for target_compile_features.

Fixes #53 (as long as packages use this CMake script... most of them do)

- Include GNUInstallDirs which sets up standard install locations including
  lib64 for mulilib systems.
- Make BUILD_SHARED_LIBS an option instead of a variable which is better for
  use in either the cmake-gui or ccmake gui interfaces.
- Setup a destination for WIN32 runtime DLL's which is also helpful for MinGW
  installs.

git-svn-id: https://pugixml.googlecode.com/svn/trunk@1012 99668b35-9821-0410-8761-19e4c4f06640