Comparatives Without More/less terms

@ruiting @linas please check newly added test sentences. 
a fixed version is now in SVN, so that the first parse is now:
```
    +---->WV--->+--------Pam-------+            
    +--Wd--+-Ss-+   +--ND-+---ECa--+--MVt--+Oxc+
    |      |    |   |     |        |       |   |
LEFT-WALL she is.v two years.u older.a-c than me 
```
which used to be the third parse