1 ......................................................................... 1
1.1 .................................................................. 1
1.2 ................................................................................... 3
2 .......................................................................................................... 5
2.1 ...................................................................... 5
2.2 ..................................................................... 6
2.3 .............................................................. 7
3 ............................................................................... 8
3.1 .......................................................................................... 8
3.2 ................................... 9
3.3 ............................................. 10
3.4 ......................................... 12
3.5
......................................................................................................................... 15
3.6 .......................................................... 18
3.7 ......................................................................... 20
3.8 ............. 25
4 ...................................... 26
4.1 .......................................... 26
4.2 .............................................................. 28
4.3 ............................................................... 29
4.4
.......................................................................................... 30