New macro for defining Package URL.

* configure.in
   Fixed alignment.
   (PACKAGE_URL): New macro.

* config.h.in
   (PACKAGE_URL): New definition as a result of new macros.
New autogen.sh script, which will prepare build system.

* autogen.sh
  New script.
Regenerating build system files with latest tool set.

* configure
  Re-Generated by GNU Autoconf 2.65

* Makefile.in
  Re-Generated by automake 1.11.1

* aclocal.m4
  Re-Generated by aclocal 1.11.1
Fixed mispelled author name in license text.

* usage.c
* keyring.c
* usage.h
* keyring.h
* main.c
   Fixed miselling.
Fixing broken autogen.sh by changing C-style comments to shell-style comments.

* autogen.sh
   Fixed broken comments.
ReadMe file updated.

* README
   Updated.
Bumped version to 1.0.

* configure.in
  Updated application version details to 1.0.
Modified usage help text.

* usage.c
  (usage_str): Modified help text.
Create .gitignore
Merge branch 'master' of https://github.com/kcaalexander/keyring-tool