Merge pull request #4 from zoresvit/master

Spellcheck and grammar fixes
added French localization
Merge pull request #5 from PropheticBird/master

added French localization
Fix bugs in France translation file.
Start 0.4-dev.
Add commands to manage localization

Extend `setup.py` with the following commands:

- locale_update
- locale_compile

which are update .po and compile it to .mo respectively.
Update localization files.
Add basic tests and CI files.
Add Python 2.6 support

Unfortunately, I have a lot of CentOS installations on my work
with Python 2.6. So I had to make possible run it over Python 2.6.
Make highlight format  optional and set default

This helps to avoid typing an extra word every time as most frequest usecase:
just highlight required pattern with something.