adding gitignore

.gitignore

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+# no backup files, editor temp
+*~
+\#*
+*.bak
+.idea/

.scrutinizer.yml

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+checks:
+    php:
+        code_rating: true
+        variable_existence: true
+        useless_calls: true
+        use_statement_alias_conflict: true
+        unused_variables: true
+        unused_properties: true
+        unused_parameters: true
+        unused_methods: true
+        unreachable_code: true
+        sql_injection_vulnerabilities: true
+        security_vulnerabilities: true
+        precedence_mistakes: true
+        precedence_in_conditions: true
+        parameter_non_unique: true
+        no_property_on_interface: true
+        no_non_implemented_abstract_methods: true
+        deprecated_code_usage: true
+        closure_use_not_conflicting: true
+        closure_use_modifiable: true
+        avoid_useless_overridden_methods: true
+        avoid_conflicting_incrementers: true
+        assignment_of_null_return: true
+        verify_property_names: true
+        verify_argument_usable_as_reference: true
+        verify_access_scope_valid: true
+        use_self_instead_of_fqcn: true
+        too_many_arguments: true
+        single_namespace_per_use: true
+        return_doc_comment_if_not_inferrable: true
+        return_doc_comments: true
+        require_scope_for_methods: true
+        require_scope_for_properties: true
+        require_php_tag_first: true
+        require_braces_around_control_structures: true
+        psr2_control_structure_declaration: true
+        psr2_switch_declaration: true
+        psr2_class_declaration: true
+        no_eval: true
+        no_else_if_statements: true
+        avoid_corrupting_byteorder_marks: true
+        argument_type_checks: true
+        php5_style_constructor: true
+        parameter_doc_comments: true
+        no_duplicate_arguments: true
+        missing_arguments: true
+        instanceof_class_exists: true
+        foreach_traversable: true
+        no_unnecessary_function_call_in_for_loop: true

.travis.yml

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+language: php
+script:
+  - phpunit
+php:
+  - 5.3
+  - 5.4
+  - 5.5
+  - 5.6