Some reorganization of source tree.

- Merged libglabels back into glabels.
- Created docs directory.
- Adjusted COPYING files to reflect above changes.

glabels/Constants.h

@@ -0,0 +1,36 @@
+/*  Constants.h
+ *
+ *  Copyright (C) 2016  Jim Evins <evins@snaught.com>
+ *
+ *  This file is part of gLabels-qt.
+ *
+ *  gLabels-qt is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  gLabels-qt is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with gLabels-qt.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef glabels_Constants_h
+#define glabels_Constants_h
+
+
+namespace glabels
+{
+
+	const double PTS_PER_PT    =  1.0;
+	const double PTS_PER_INCH  = 72.0;
+	const double PTS_PER_MM    =  2.83464566929;
+	const double PTS_PER_CM    =  (10.0*PTS_PER_MM);
+	const double PTS_PER_PICA  =  12.0;
+
+}
+
+#endif // glabels_Constants_h