Alvin/minor fixes and improvements

[alvin-777]

• TDD

New/modified code must be backed down with unit test - preferably TDD style development)

• Documentation

All new/modified functionality should be backed up with API documentation (API.markdown or README.markdown)

Cross-Platform Testing

• Travis-CI (Linux, OSX) + AppVeyor-CI (Windows)\
• Optional: Local/VM testing: Windows
• Optional: Local/VM testing: OSX
• Optional: Local/VM testing: Linux

Testing Advice

mkdir build; cd build; cmake -DADD_G3LOG_UNIT_TEST=ON ..

Run Test Alternatives:

• Cross-Platform: ctest
• or ctest -V for verbose output
• Linux: make test

[alvin-777]

Here is the only line actually modified.

[alvin-777]

First commit: fixed a bunch of typos
Second commit: aligned up some indentations and fixed build for MinGW on Windows (here)

Note: even though MinGW builds, it fails the sink_test - specifically, it keeps adding messages to the queue, but the sink threads get starved (or maybe stuck?) and can never get any more messages from some point. Eventually, the test runs out of the memory and Windows crashes (the computer I used has 32GB memory, got filled up within 90 seconds).

If I increase the intervals between logs from 1~10 microseconds to 1~10 milliseconds, then it will pass the test immediately. (this line)

On Ubuntu, it was no problem either.

I don't know if that's a problem with this library or MinGW GCC, still investigating it... But I think this pr is safe to merge. :)

[KjellKod]

Good find. AFAIK microseconds handling with $MS might be poor. It probably depends on your setup as well.