Reorganize simplification code

2021-03-29, Version 0.1.3

Commits

• [99821a933c] Bump version to 0.1.3 (molpopgen)
• [a34d582e02] add change log info for 0.1.2 (molpopgen)
• [cfcfb7e657] Merge pull request #72 from molpopgen/tskit_tools (Kevin R. Thornton)
• [d69bf0889e] update name in examples (molpopgen)
• [7e65155553] rename crate::tskit to crate::tskit_tools (molpopgen)
• [dffc91a41c] Merge pull request #71 from molpopgen/fix_doc_issues (Kevin R. Thornton)
• [a6b929818c] Fix various links in docs. (molpopgen)
• [9e56d40662] Merge pull request #69 from molpopgen/streamline_simplification_code_organization (Kevin R. Thornton)
• [e441f9202a] Move all simplification code into one source file (molpopgen)
• [4123c16adf] Merge pull request #70 from molpopgen/update_cancel_action (Kevin R. Thornton)
• [f694d05abd] Add cancel to macos. Update token. (molpopgen)
• [22150f32fe] Merge pull request #68 from ForwardSimulation/dependabot/add-v2-config-file (Kevin R. Thornton)
• [3c9ed4f211] Create Dependabot config file (dependabot-preview[bot])
• [01a529220c] Merge pull request #67 from ForwardSimulation/dependabot/cargo/GSL-4.0.0 (dependabot-preview[bot])
• [c8567deedf] Update GSL requirement from 2.0.1 to 4.0.0 (dependabot-preview[bot])