Version update: 4.0.3 -> 4.1-alpha

[davegill]

TYPE: text only

KEYWORDS: version_decl, v4.1-alpha

SOURCE: internal

DESCRIPTION OF CHANGES:
Update the character string inside the WRF system from 4.0.3 to 4.1-alpha.

LIST OF MODIFIED FILES:
M inc/version_decl

TESTS CONDUCTED:

• Code runs and v4.1-alpha is the version printed from the WRF system programs.

> ncdump -h wrfinput_d01 | grep TITLE
		:TITLE = " OUTPUT FROM REAL_EM V4.1-alpha PREPROCESSOR" ;
> ncdump -h wrfinput_initialized_d01  | grep TITLE
		:TITLE = " OUTPUT FROM WRF V4.1-alpha MODEL" ;
> ncdump -h met_em.d01.2019-02-15_12:00:00.nc  | grep TITLE
		:TITLE = "OUTPUT FROM METGRID V4.1" ;
> ncdump -h wrfout_d01_2019-02-16_12:00:00  | grep TITLE
		:TITLE = " OUTPUT FROM WRF V4.1-alpha MODEL" ;