Fixed bug setting pump curve params (#314) and in setting demand categories

-Split off calc. of a pump's curve coeffs. from getpumpparams to updatepumpparams.
- Fixed problem with initializing node demand category when default demand pattern set before node is created.
- Increased MAXLINE to 1024 to accomodate increase in MAXMSG.
- Replaced EN_geterror calls in input2.c with geterrmsg (it's bad form to call API functions in the body of the library)

src/types.h

@@ -51,7 +51,7 @@ typedef  int          INT4;
 #define   TITLELEN  79       // Max. # characters in a title line
 #define   MAXID     31       /* Max. # characters in ID name           */      
 #define   MAXMSG    255      /* Max. # characters in message text      */
-#define   MAXLINE   255      /* Max. # characters read from input line */
+#define   MAXLINE   1024     /* Max. # characters read from input line */
 #define   MAXFNAME  259      /* Max. # characters in file name         */
 #define   MAXTOKS   40       /* Max. items per line of input           */
 #define   TZERO     1.E-4    /* Zero time tolerance                    */