updated some .gitignore files, deleted gradle wrapper android plugin directory

.gitignore

@@ -1,11 +1,29 @@
+# Miscellaneous
+*.class
+*.log
+*.pyc
+*.swp
 .DS_Store
+.atom/
+.buildlog/
+.history
+.svn/
+
+# IntelliJ related
+*.iml
+*.ipr
+*.iws
+.idea/
+
+# The .vscode folder contains launch configuration and tasks you configure in
+# VS Code which you may wish to be included in version control, so this line
+# is commented out by default.
+#.vscode/
+
+# Flutter/Dart/Pub related
+# Libraries should not include pubspec.lock, per https://dart.dev/guides/libraries/private-files#pubspeclock.
+/pubspec.lock
+**/doc/api/
 .dart_tool/
-
-.vscode/
 .packages
-.pub/
-pubspec.lock
-
 build/
-
-.idea/workspace.xml

android/.gitignore

@@ -1,5 +1,5 @@
 *.iml
-.gradle/
+.gradle
 gradlew
 gradlew.bat
 gradle-wrapper.jar

example/android/gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
-#Sat Sep 26 11:13:08 CEST 2020
+#Fri Jun 23 08:50:38 CEST 2017
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.1.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.7-all.zip

ios/.gitignore

@@ -34,3 +34,5 @@ Icon?
 .tags*
 
 /Flutter/Generated.xcconfig
+/Flutter/ephemeral/
+/Flutter/flutter_export_environment.sh