Implemented basic buying functions

- Renamed more scripts
- Switched license to Artistic 2.0

.gitignore

@@ -1,10 +1,41 @@
-### Audio ###
+# File created using '.gitignore Generator' for Visual Studio Code: https://bit.ly/vscode-gig
 
-*.wav
-*.ogg
+# Created by https://www.toptal.com/developers/gitignore/api/windows,visualstudiocode,monodevelop,macos,linux,godot,executable,dotnetcore,backup,archives
+# Edit at https://www.toptal.com/developers/gitignore?templates=windows,visualstudiocode,monodevelop,macos,linux,godot,executable,dotnetcore,backup,archives
 
-# Created by https://www.gitignore.io/api/linux,godot,macos,backup,windows,dotnetcore,executable,monodevelop,visualstudiocode
-# Edit at https://www.gitignore.io/?templates=linux,godot,macos,backup,windows,dotnetcore,executable,monodevelop,visualstudiocode
+### Archives ###
+# It's better to unpack these files and commit the raw source because
+# git has its own built in compression methods.
+*.7z
+*.jar
+*.rar
+*.zip
+*.gz
+*.gzip
+*.tgz
+*.bzip
+*.bzip2
+*.bz2
+*.xz
+*.lzma
+*.cab
+*.xar
+
+# Packing-only formats
+*.iso
+*.tar
+
+# Package management formats
+*.dmg
+*.xpi
+*.gem
+*.egg
+*.deb
+*.rpm
+*.msi
+*.msm
+*.msp
+*.txz
 
 ### Backup ###
 *.bak
@@ -15,14 +46,13 @@
 
 ### DotnetCore ###
 # .NET Core build folders
-/bin
-/obj
+bin/
+obj/
 
 # Common node modules locations
 /node_modules
 /wwwroot/node_modules
 
-
 ### Executable ###
 *.app
 *.bat
@@ -30,7 +60,6 @@
 *.com
 *.exe
 *.gadget
-*.jar
 *.pif
 *.vb
 *.wsf
@@ -42,8 +71,12 @@
 export.cfg
 export_presets.cfg
 
+# Imported translations (automatically generated from CSV files)
+*.translation
+
 # Mono-specific ignores
 .mono/
+data_*/
 
 ### Linux ###
 *~
@@ -69,6 +102,7 @@ export_presets.cfg
 # Icon must end with two \r
 Icon
 
+
 # Thumbnails
 ._*
 
@@ -104,10 +138,12 @@ test-results/
 !.vscode/tasks.json
 !.vscode/launch.json
 !.vscode/extensions.json
+*.code-workspace
 
 ### VisualStudioCode Patch ###
 # Ignore all local history of files
 .history
+.ionide
 
 ### Windows ###
 # Windows thumbnail cache files
@@ -126,13 +162,12 @@ ehthumbs_vista.db
 $RECYCLE.BIN/
 
 # Windows Installer files
-*.cab
-*.msi
 *.msix
-*.msm
-*.msp
 
 # Windows shortcuts
 *.lnk
 
-# End of https://www.gitignore.io/api/linux,godot,macos,backup,windows,dotnetcore,executable,monodevelop,visualstudiocode
+# End of https://www.toptal.com/developers/gitignore/api/windows,visualstudiocode,monodevelop,macos,linux,godot,executable,dotnetcore,backup,archives
+
+# Custom rules (everything added below won't be overriden by 'Generate .gitignore File' if you use 'Update' option)
+