Added basic logging feature to understand how is configuration loaded

[pcarranza]

I've implemented some basic logging features when -d or --debug is added as an argument, it behaves like this:

$ jrnl -d I\'ve just committed code on jrnl to enable debug mode with logging
DEBUG    jrnl.cli     Reading configuration from file /home/myuser/.jrnl_config
DEBUG    jrnl.util    Configuration file /home/myuser/.jrnl_config read correctly
DEBUG    jrnl.cli     Using configuration {u'default_hour': 9, u'linewrap': 79, u'encrypt': False, u'default_minute': 0, u'tagsymbols': u'@', u'editor': u'vi', u'timeformat': u'%Y-%m-%d %H:%M', u'highlight': True, u'journals': {u'default': u'/home/myuser/journal.txt'}}
DEBUG    jrnl.cli     Using journal default
DEBUG    jrnl.cli     Using journal path /home/myuser/journal.txt
DEBUG    jrnl.cli     Appending raw line "I've just committed code on jrnl to enable debug mode with logging" to journal "default"
[Entry added to default journal]

Probably there is a lot more work to do with the logger, but it is a start

[maebert]

Great work. Could you rebase this agains branch 2.0-rc1 though?

[pcarranza]

Sure, np, do you want cherry pick to have it in both or just 2.0?

[maebert]

Ah, I'm going to merge this and pick it for 2.0 myself. Thanks again for the contribution!

[pcarranza]

Hey, thanks, did not had any time to do it.

I'll check later the implementation on 2.0.

One thing, if you want maybe we can release this update in homebrew, just ping me to update the formula.

[maebert]

Alright. I'll browse through some old issues and add some debug stuff that would have helped there, too, and then we can wrap it up as a really really last release before 2.0 :)