Ignore log files and (intermediate) IntelliJ confs

Introduced in the course of support-and-care/maven-support-and-care#137

Author: ascheman

.gitignore

@@ -10,6 +10,8 @@
 
 # IDE configuration
 .idea/
+*.iml
+.vscode/
 
 # Downloaded files
 .m2/
@@ -21,4 +23,7 @@
 *.html
 
 # Maven artifacts
-target/
+target/
+
+# Log files
+*.log