* Adding a `--version` argument to the Psalm executable.
* Using ocramius/package-versions instead of hardcoding a version.
* Backporting PackageVersions to a PHP 5.6+ compatible fork.
* Add XML as possible output format + add report generation
* Add missing xml root node
* Change XML generator (previous one don't escape '<' and '>')
* Change option (only one option) + unit test
* swapping phpcs for php-cs-fixer
* workaround for php-cs-fixer treating parenthesis following echo as the function call variant
* amending rules
* blank_line_before_return
* majority of files pass with these disabled, could remove later
* combine_consecutive_unsets
* concat_space
* placeholder for if vimeo/psalm ever goes php:^7.0
* function_to_constant
* disabling include
* linebreak_after_opening_tag, lowercase_cast, magic_constant_casing
* mb_str_functions disabled
* method_separation
* native_function_casing
* native_function_invocations
* new_with_braces disabled to match usage
* no_alias_functions
* no_blank_lines_after_class_opening
* no_blank_lines_after_phpdoc
* no_blank_lines_before_namespace
* no_empty_comment
* no_empty_phpdoc
* no_empty_statement
* no_extra_consecutive_blank_lines
* no_leading_import_slash to discuss
* no_leading_namespace_whitespace
* no_mixed_echo_print
* no_multiline_whitespace_around_double_arrow
* no_multiline_whitespace_before_semicolons
* no_php4_constructor
* no_short_bool_cast
* no_short_echo_tag
* no_singleline_whitespace_before_semicolons
* no_spaces_around_offset
* no_trailing_comma_in_list_call
* no_trailing_comma_in_singleline_array
* no_unneeded_control_parentheses to discuss
* no_unreachable_default_argument_value
* no_unused_imports to discuss
* no_useless_else to discuss
* no_useless_return
* no_whitespace_before_comma_in_array
* no_whitespace_in_blank_line
* non_printable_character
* normalize_index_brace
* ordered_class_elements to discuss
* ordered_imports to discss
* php_unit_construct
* php_unit_dedicate_assert
* php_unit_fqcn_annotation
* php_unit_strict to discuss
* php_unit_test_class_requires_covers to discuss
* phpdoc_add_missing_param_annotation
* phpdoc_align to discuss
* phpdoc_annotation_without_dot to discuss
* phpdoc_indent to discuss
* phpdoc_inline_tag
* phpdoc_no_access
* phpdoc_no_alias_tag
* phpdoc_no_empty_return
* phpdoc_no_package
* phpdoc_no_useless_inheritdoc
* phpdoc_order to discuss
* phpdoc_return_self_reference
* phpdoc_scalar to discuss
* phpdoc_separation to discuss
* phpdoc_single_line_var_spacing
* phpdoc_summary to discuss
* phpdoc_to_comment to discuss
* phpdoc_trim to discuss
* phpdoc_types
* phpdoc_var_without_name
* pow_to_exponentiation
* pre_increment to discuss
* protected_to_private
* psr0 turned off
* psr4 turned on
* random_api_migration
* return_type_declaration to discuss
* self_accessor to discuss
* semicolon_after_instruction
* short_scalar_cast
* silenced_deprecation_error turned off
* simplified_null_return to discuss
* single_quote
* space_after_semicolon
* standardize_not_equals
* strict_comparison to discuss
* strict_param to discuss
* ternary_operator_spaces
* ternary_to_null_coalescing should be set to true if vimeo/psalm ever goes php:^7.0
* trailing_comma_in_multiline_array to discuss
* trim_array_spaces
* unary_operator_spaces
* whitespace_after_comma_in_array to discuss
* multi-version scrutinizer to match travis
* binary_operator_space
* not the best solution, but it works to exclude the call map from php-cs-fixer
* reducing verbosity of config where defaults were used
* dry run php-cs-fixer as part of tests
* disabling rule pending FriendsOfPHP/PHP-CS-Fixer#2739
* enabling no_unused_imports
* enabling ordered_imports
* ignoring user-defined .php_cs
* using $TRAVIS_COMMIT_RANGE to only test modified files
* enabling no_leading_import_slash
* conditionally testing everything
* filter output then perform exact match
* restoring phpcs via partial cherry pick of f65c618
