Reworked code to use XLConnect library. This solved the issues with java awt library. Although XLConnect currently does not support:
- alignmet
- font styles

and some apparent issue when transforming data on shiny server: the temporary file path is not correct.
Added unique allele column
Merged

Merge branch 'master' of https://github.com/c5sire/licor

Conflicts:
	R/licor.R