Fix: Fixed too strict .gitignore rules.

(Redmine issue: #3387)

.gitignore

@@ -30,19 +30,11 @@
 *.egg-info
 __pycache__
 .Python
-build/
-develop-eggs/
-dist/
-downloads/
-eggs/
-.eggs/
-lib/
-lib64/
-parts/
-sdist/
-var/
-wheels/
-venv/
+/build/
+/dist/
+/sdist/
+/var/
+/venv/
 *.egg-info/
 .installed.cfg
 *.egg
@@ -59,10 +51,8 @@ parser.out
 parsetab.py
 
 # Ignore HTML frontend libraries.
-lib/hawat/blueprints/design/static/vendor/
-lib/hawat/templates/iana-tz-data/
-static/vendor/
-vendor/
+/lib/hawat/templates/iana-tz-data/
+/lib/hawat/blueprints/design/static/vendor/
 
 # Local NodeJS modules for Grunt.
 /node_modules/