Merged PR #1 with code improvements

• Removed trailing space 0f8269e
• Created develop and mentioned in README faf541a
• Merge pull request #1 from ksenkso/merging-fix 17b7631
• feat(tests): add performance check 75e3904
• refactor(tests): move utility functions to separate file, use new vm every time 92027da
• chore(config): set indent size to 4 spaces as in whole project 58a48df
• fix(performance): do not check if key is owned by data object 6b5d8d3
• Fixed laravel example 0929d84

v1.2.3...v1.3.0