updated spec to expect newline after each instruction
Added test for Assembler#return_mif
implemented Assembler#return_mif
Changed assembler to strip comments before reading lines
Fixed Assembler#strip_comment in case where no comment exists
Added tests for Assembler#strip_comment
Fixed assembler to handle empty lines correctly
Updated Program to output file
Updated Program to output in specific output directory
Merge pull request #8 from David1Socha/file

Updates assembler so the program can take an input assembly file and output a mif file.