Fix four SPKGs with irregular directory structures

[kini]

The following SPKGs do not have a src/ directory:

sage_scripts
extcode
libm4ri
sage_root
elliptic_curves
graphs
sage
polytopes_db

The sage spkgs are obviously supposed to be irregular (I guess) but the other four - libm4ri, elliptic_curves, graphs, and polytopes_db should follow the guidelines given in the developers' guide and have a src/ directory.

---

Install:

• http://boxen.math.washington.edu/home/keshav/files/fixed-spkgs/elliptic_curves-0.5.spkg
• http://boxen.math.washington.edu/home/keshav/files/fixed-spkgs/libm4ri-20111004.p1.spkg
• http://boxen.math.washington.edu/home/keshav/files/fixed-spkgs/graphs-20070722.p2.spkg
• http://boxen.math.washington.edu/home/keshav/files/fixed-spkgs/polytopes_db-20100210.p1.spkg

Depends on #12644

CC: @ohanar @malb @sagetrac-ekirkman @novoselt @jasongrout @williamstein

Component: packages: standard

Keywords: libm4ri elliptic_curves graphs polytopes_db rd2

Author: Keshav Kini

Reviewer: R. Andrew Ohana

Merged: sage-5.0.beta10

Issue created by migration from https://trac.sagemath.org/ticket/12694

[kini]

Description changed:

--- 
+++ 
@@ -12,3 +12,8 @@
 ```
 
 The sage spkgs are obviously supposed to be irregular (I guess) but the other four - `libm4ri`, `elliptic_curves`, `graphs`, and `polytopes_db` should follow the guidelines given in the developers' guide and have a `src/` directory.
+
+---
+
+Install:
+* [http://boxen.math.washington.edu/home/keshav/files/fixed-spkgs/elliptic_curves-0.5.spkg](http://boxen.math.washington.edu/home/keshav/files/fixed-spkgs/elliptic_curves-0.5.spkg)

[kini]

Dependencies: #12644

[kini]

comment:3

I have uploaded an spkg.

[kini]

comment:4

The above comment was a test of the newly upgraded trac server. Here are two more SPKGs.

[kini]

Description changed:

--- 
+++ 
@@ -10,10 +10,11 @@
 sage
 polytopes_db
 ```
-
 The sage spkgs are obviously supposed to be irregular (I guess) but the other four - `libm4ri`, `elliptic_curves`, `graphs`, and `polytopes_db` should follow the guidelines given in the developers' guide and have a `src/` directory.
 
 ---
+Install:
 
-Install:
-* [http://boxen.math.washington.edu/home/keshav/files/fixed-spkgs/elliptic_curves-0.5.spkg](http://boxen.math.washington.edu/home/keshav/files/fixed-spkgs/elliptic_curves-0.5.spkg)
+* http://boxen.math.washington.edu/home/keshav/files/fixed-spkgs/elliptic_curves-0.5.spkg
+* http://boxen.math.washington.edu/home/keshav/files/fixed-spkgs/libm4ri-20111004.p1.spkg
+* http://boxen.math.washington.edu/home/keshav/files/fixed-spkgs/graphs-20070722.p2.spkg

[kini]

comment:5

And the last one.

[kini]

Description changed:

--- 
+++ 
@@ -18,3 +18,4 @@
 * http://boxen.math.washington.edu/home/keshav/files/fixed-spkgs/elliptic_curves-0.5.spkg
 * http://boxen.math.washington.edu/home/keshav/files/fixed-spkgs/libm4ri-20111004.p1.spkg
 * http://boxen.math.washington.edu/home/keshav/files/fixed-spkgs/graphs-20070722.p2.spkg
+* http://boxen.math.washington.edu/home/keshav/files/fixed-spkgs/polytopes_db-20100210.p1.spkg