updated for version 7.3.1149
Problem:    New regexp engine: Matching plain text could be faster.
Solution:   Detect a plain text match and handle it specifically.  Add
	    vim_regfree().
Added tag v7-3-1149 for changeset 66803af09906
updated for version 7.3.1150
Problem:    New regexpengine: Slow when a look-behind match does not have a
	    width specified.
Solution:   Try to compute the maximum width.
Added tag v7-3-1150 for changeset 3dbd251777de
updated for version 7.3.1151
Problem:    New regexp engine: Slow when a look-behind match is followed by a
	    zero-width match.
Solution:   Postpone the look-behind match more often.
Added tag v7-3-1151 for changeset 4d7e3df04256
updated for version 7.3.1152
Problem:    In tiny build ireg_icombine is undefined. (Tony Mechelynck)
Solution:   Add #ifdef.
Added tag v7-3-1152 for changeset 9909e44879b9
updated for version 7.3.1153
Problem:    New regexp engine: Some look-behind matches are very expensive.
Solution:   Pospone invisible matches further, until a match is almost found.
Added tag v7-3-1153 for changeset bc3f4804cf47
updated for version 7.3.1154
Problem:    New regexp_nfa engine: Uneccessary code.
Solution:   Remove uneccessary code.
Added tag v7-3-1154 for changeset 6419ee8098c8
updated for version 7.3.1155
Problem:    MS-DOS: "make test" uses external rmdir command.
Solution:   Rename "rmdir" to "rd". (Taro Muraoka)
Added tag v7-3-1155 for changeset bf1e6326df11
updated for version 7.3.1156
Problem:    Compiler warnings. (dv1445)
Solution:   Initialize variables, even when the value isn't really used.
Added tag v7-3-1156 for changeset 8c4324e6f477
Merge branch 'vim'