long logger messages get newlines

short messages print out after the logger message

if message has more than 40 chars, automatically writes a paragraph starting on the next line, i.e.:

```r
> source("utils/R/logger.R"); logger.message("WARN", "Lorem Ipsum")
2014-07-29 18:16:23 WARN   [console] : Lorem Ipsum 
> source("utils/R/logger.R"); logger.message("WARN", "Lorem Ipsum has been the industry's", " standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.")
2014-07-29 18:16:27 WARN   [console] : 
 Lorem Ipsum has been the industry's standard dummy text 
 ever since the 1500s, when an unknown printer took a galley 
 of type and scrambled it to make a type specimen book. It 
 has survived not only five centuries, but also the leap 
 into electronic typesetting, remaining essentially 
 unchanged. It was popularised in the 1960s with the release 
 of Letraset sheets containing Lorem Ipsum passages, and 
 more recently with desktop publishing software like Aldus 
 PageMaker including versions of Lorem Ipsum. 
```