Added a simplified ascii_to_int() implementation.

Removed dependency on hard-coded pager id. Pager id is now passed
as an environment string `pagerid' to tasks. Alternatively, this
could take space in the utcb of each task.

conts/test/include/linker.lds

@@ -1,34 +0,0 @@
-/*
- * Example working linker script for this container.
- *
- * Copyright (C) 2009 B Labs Ltd.
- */
-
-vma_start = 0x0;
-lma_start = 0x1000000;
-offset = vma_start - lma_start;
-
-ENTRY(_start)
-
-SECTIONS
-{
-	. = vma_start;
-	.text : AT (ADDR(.text) - offset) {
-	/*
-	 * NOTE:
-	 * crt0.S must be in .text.head. This is necessary because
-	 * the kernel does not know any _start address, it assumes
-	 * the start address of pager region as the start address.
-	 */
-		*(.text.head) *(.text)
-	}
-	.rodata : AT (ADDR(.rodata) - offset) { *(.rodata) }
-	.rodata1 : AT (ADDR(.rodata1) - offset) { *(.rodata1) }
-
-	. = ALIGN(4K);
-	.data : AT (ADDR(.data) - offset) { *(.data) }
-	.bss : AT (ADDR(.bss) - offset) { *(.bss) }
-	. += 0x1000;
-	. = ALIGN(8);
-	__stack = .;
-}