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/assets/themes/gui/default/theme.conf

@@ -0,0 +1,2 @@
+[Main]
+name = Default System Theme

novelwriter/assets/themes/gui/default_dark/styles.qss

@@ -0,0 +1,5 @@
+/**
+ * Default Theme: Dark
+ * This theme doesn't use any custom styles, so the file is only here as
+ * an example. There doesn't have to be a styles.qss file in the folder.
+ */

novelwriter/assets/themes/gui/default_dark/theme.conf

@@ -0,0 +1,28 @@
+[Main]
+name       = Default Dark Theme
+author     = Veronica Berglyd Olsen
+credit     = Veronica Berglyd Olsen
+url        = https://github.com/vkbo/novelWriter
+license    = CC BY-SA 4.0
+licenseurl = https://creativecommons.org/licenses/by-sa/4.0/
+
+[Palette]
+window          =  54,  54,  54
+windowtext      = 174, 174, 174
+base            =  62,  62,  62
+alternatebase   =  67,  67,  67
+text            = 174, 174, 174
+tooltipbase     = 255, 255, 192
+tooltiptext     =  21,  21,  13
+button          =  62,  62,  62
+buttontext      = 174, 174, 174
+brighttext      = 174, 174, 174
+highlight       =  44, 152, 247
+highlightedtext = 255, 255, 255
+link            =  44, 152, 247
+linkvisited     =  44, 152, 247
+
+[GUI]
+statusnone      = 150, 152, 150
+statussaved     =  39, 135,  78
+statusunsaved   = 138,  32,  32

novelwriter/assets/themes/gui/solarized_dark/theme.conf

@@ -0,0 +1,28 @@
+[Main]
+name       = Solarized Dark
+author     = nullbasis
+credit     = Ethan Schoonover
+url        = https://ethanschoonover.com/solarized/
+license    = MIT
+licenseurl = https://github.com/altercation/solarized/blob/master/LICENSE
+
+[Palette]
+window          =   0,  43,  54
+windowtext      = 253, 246, 227
+base            =   7,  54,  66
+alternatebase   =  67,  67,  67
+text            = 253, 246, 227
+tooltipbase     = 133, 153,   0
+tooltiptext     =   0,  43,  54
+button          =   7,  54,  66
+buttontext      = 253, 246, 227
+brighttext      = 253, 246, 227
+highlight       =  42, 161, 152
+highlightedtext =   0,  43,  54
+link            =  38, 139, 210
+linkvisited     =  38, 139, 210
+
+[GUI]
+statusnone      =  88, 110, 117
+statussaved     =  42, 161, 152
+statusunsaved   = 203,  75,  22

novelwriter/assets/themes/gui/solarized_light/theme.conf

@@ -0,0 +1,28 @@
+[Main]
+name       = Solarized Light
+author     = nullbasis
+credit     = Ethan Schoonover
+url        = https://ethanschoonover.com/solarized/
+license    = MIT
+licenseurl = https://github.com/altercation/solarized/blob/master/LICENSE
+
+[Palette]
+window          = 238, 232, 213
+windowtext      =   0,  43,  54
+base            = 253, 246, 227
+alternatebase   = 238, 232, 213
+text            =   0,  43,  54
+tooltipbase     = 133, 153,   0
+tooltiptext     =   0,  43,  54
+button          = 238, 232, 213
+buttontext      =   0,  43,  54
+brighttext      =   0,  43,  54
+highlight       =  42, 161, 152
+highlightedtext = 253, 246, 227
+link            =  38, 139, 210
+linkvisited     =  38, 139, 210
+
+[GUI]
+statusnone      =  88, 110, 117
+statussaved     =  42, 161, 152
+statusunsaved   = 203,  75,  22