Rename package from 'nw' to 'novelwriter' (#868)

* Rename nw folder to novelwriter
* Rename nw to novelwriter in auxiliary files
* Rename nw to novelwriter in main app source
* Rename nw to novelwriter in tests
* Make setup script for pdf docs less spammy

novelWriter.pro

@@ -1,34 +1,34 @@
 SOURCES += \
     i18n/qtbase.py \
-    nw/core/project.py \
-    nw/core/tokenizer.py \
-    nw/dialogs/about.py \
-    nw/dialogs/docmerge.py \
-    nw/dialogs/docsplit.py \
-    nw/dialogs/itemeditor.py \
-    nw/dialogs/preferences.py \
-    nw/dialogs/projload.py \
-    nw/dialogs/projsettings.py \
-    nw/dialogs/wordlist.py \
-    nw/gui/custom.py \
-    nw/gui/doceditor.py \
-    nw/gui/docviewer.py \
-    nw/gui/itemdetails.py \
-    nw/gui/mainmenu.py \
-    nw/gui/noveltree.py \
-    nw/gui/outline.py \
-    nw/gui/outlinedetails.py \
-    nw/gui/projdetails.py \
-    nw/gui/projtree.py \
-    nw/gui/statusbar.py \
-    nw/gui/theme.py \
-    nw/tools/build.py \
-    nw/tools/projwizard.py \
-    nw/tools/writingstats.py \
-    nw/common.py \
-    nw/constants.py \
-    nw/error.py \
-    nw/guimain.py
+    novelwriter/core/project.py \
+    novelwriter/core/tokenizer.py \
+    novelwriter/dialogs/about.py \
+    novelwriter/dialogs/docmerge.py \
+    novelwriter/dialogs/docsplit.py \
+    novelwriter/dialogs/itemeditor.py \
+    novelwriter/dialogs/preferences.py \
+    novelwriter/dialogs/projload.py \
+    novelwriter/dialogs/projsettings.py \
+    novelwriter/dialogs/wordlist.py \
+    novelwriter/gui/custom.py \
+    novelwriter/gui/doceditor.py \
+    novelwriter/gui/docviewer.py \
+    novelwriter/gui/itemdetails.py \
+    novelwriter/gui/mainmenu.py \
+    novelwriter/gui/noveltree.py \
+    novelwriter/gui/outline.py \
+    novelwriter/gui/outlinedetails.py \
+    novelwriter/gui/projdetails.py \
+    novelwriter/gui/projtree.py \
+    novelwriter/gui/statusbar.py \
+    novelwriter/gui/theme.py \
+    novelwriter/tools/build.py \
+    novelwriter/tools/projwizard.py \
+    novelwriter/tools/writingstats.py \
+    novelwriter/common.py \
+    novelwriter/constants.py \
+    novelwriter/error.py \
+    novelwriter/guimain.py
 
 TRANSLATIONS += \
     i18n/nw_en_US.ts \